10001123121031 has 8 divisors (see below), whose sum is σ = 11519853854720. Its totient is φ = 8504892102168.

The previous prime is 10001123121029. The next prime is 10001123121049. The reversal of 10001123121031 is 13012132110001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10001123121031 - 2¹ = 10001123121029 is a prime.

It is a super-2 number, since 2×10001123121031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10001123120996 and 10001123121014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001123101031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5624927751 + ... + 5624929528.

It is an arithmetic number, because the mean of its divisors is an integer number (1439981731840).

Almost surely, 2^{10001123121031} is an apocalyptic number.

10001123121031 is a deficient number, since it is larger than the sum of its proper divisors (1518730733689).

10001123121031 is a wasteful number, since it uses less digits than its factorization.

10001123121031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11249857413.

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

Adding to 10001123121031 its reverse (13012132110001), we get a palindrome (23013255231032).

The spelling of 10001123121031 in words is "ten trillion, one billion, one hundred twenty-three million, one hundred twenty-one thousand, thirty-one".