1320101011231 has 4 divisors (see below), whose sum is σ = 1350801034792. Its totient is φ = 1289400987672.

The previous prime is 1320101011217. The next prime is 1320101011277. The reversal of 1320101011231 is 1321101010231.

It is a happy number.

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 1320101011231 - 2⁹ = 1320101010719 is a prime.

It is a super-2 number, since 2×1320101011231² (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 (1320101011331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15350011716 + ... + 15350011801.

It is an arithmetic number, because the mean of its divisors is an integer number (337700258698).

Almost surely, 2^{1320101011231} is an apocalyptic number.

1320101011231 is a deficient number, since it is larger than the sum of its proper divisors (30700023561).

1320101011231 is an equidigital number, since it uses as much as digits as its factorization.

1320101011231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30700023560.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1320101011231 its reverse (1321101010231), we get a palindrome (2641202021462).

The spelling of 1320101011231 in words is "one trillion, three hundred twenty billion, one hundred one million, eleven thousand, two hundred thirty-one".