10120031131 has 8 divisors (see below), whose sum is σ = 11570114304. Its totient is φ = 8671039080.

The previous prime is 10120031111. The next prime is 10120031143. The reversal of 10120031131 is 13113002101.

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

It is a 3-Lehmer number, since φ(10120031131) divides (10120031131-1)³.

It is a cyclic number.

It is not a de Polignac number, because 10120031131 - 2⁹ = 10120030619 is a prime.

It is a super-2 number, since 2×10120031131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10120031111) 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, 252805 + ... + 290086.

It is an arithmetic number, because the mean of its divisors is an integer number (1446264288).

Almost surely, 2^10120031131 is an apocalyptic number.

10120031131 is a deficient number, since it is larger than the sum of its proper divisors (1450083173).

10120031131 is an equidigital number, since it uses as much as digits as its factorization.

10120031131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545561.

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

Adding to 10120031131 its reverse (13113002101), we get a palindrome (23233033232).

The spelling of 10120031131 in words is "ten billion, one hundred twenty million, thirty-one thousand, one hundred thirty-one".