10031011121 has 4 divisors (see below), whose sum is σ = 10037925744. Its totient is φ = 10024096500.

The previous prime is 10031010991. The next prime is 10031011139. The reversal of 10031011121 is 12111013001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10031011121 - 2¹⁴ = 10030994737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10031011141) 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, 3455135 + ... + 3458036.

It is an arithmetic number, because the mean of its divisors is an integer number (2509481436).

Almost surely, 2^10031011121 is an apocalyptic number.

It is an amenable number.

10031011121 is a deficient number, since it is larger than the sum of its proper divisors (6914623).

10031011121 is an equidigital number, since it uses as much as digits as its factorization.

10031011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6914622.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 10031011121 its reverse (12111013001), we get a palindrome (22142024122).

The spelling of 10031011121 in words is "ten billion, thirty-one million, eleven thousand, one hundred twenty-one".