1361250031031 has 4 divisors (see below), whose sum is σ = 1485000033864. Its totient is φ = 1237500028200.

The previous prime is 1361250031003. The next prime is 1361250031033. The reversal of 1361250031031 is 1301300521631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1361250031031 - 2³⁰ = 1360176289207 is a prime.

It is a super-2 number, since 2×1361250031031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361250031033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61875001400 + ... + 61875001421.

It is an arithmetic number, because the mean of its divisors is an integer number (371250008466).

Almost surely, 2^{1361250031031} is an apocalyptic number.

1361250031031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1361250031031 is a deficient number, since it is larger than the sum of its proper divisors (123750002833).

1361250031031 is a wasteful number, since it uses less digits than its factorization.

1361250031031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123750002832.

The product of its (nonzero) digits is 1620, while the sum is 26.

Adding to 1361250031031 its reverse (1301300521631), we get a palindrome (2662550552662).

The spelling of 1361250031031 in words is "one trillion, three hundred sixty-one billion, two hundred fifty million, thirty-one thousand, thirty-one".