10310031121 has 4 divisors (see below), whose sum is σ = 11103110452. Its totient is φ = 9516951792.

The previous prime is 10310031113. The next prime is 10310031139. The reversal of 10310031121 is 12113001301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12113001301 = 127 ⋅95377963.

It can be written as a sum of positive squares in 2 ways, for example, as 5732155521 + 4577875600 = 75711^2 + 67660^2 .

It is a cyclic number.

It is not a de Polignac number, because 10310031121 - 2³ = 10310031113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 793079317 = 10310031121 / (1 + 0 + 3 + 1 + 0 + 0 + 3 + 1 + 1 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10310041121) 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, 396539646 + ... + 396539671.

It is an arithmetic number, because the mean of its divisors is an integer number (2775777613).

Almost surely, 2^10310031121 is an apocalyptic number.

It is an amenable number.

10310031121 is a deficient number, since it is larger than the sum of its proper divisors (793079331).

10310031121 is an equidigital number, since it uses as much as digits as its factorization.

10310031121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793079330.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 10310031121 its reverse (12113001301), we get a palindrome (22423032422).

The spelling of 10310031121 in words is "ten billion, three hundred ten million, thirty-one thousand, one hundred twenty-one".