10120123031 has 4 divisors (see below), whose sum is σ = 10291650600. Its totient is φ = 9948595464.

The previous prime is 10120122997. The next prime is 10120123063. The reversal of 10120123031 is 13032102101.

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 10120123031 - 2¹⁸ = 10119860887 is a prime.

It is a super-2 number, since 2×10120123031² (a number of 21 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 = 10120122997 and 10120123015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120143031) 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, 85763696 + ... + 85763813.

It is an arithmetic number, because the mean of its divisors is an integer number (2572912650).

Almost surely, 2^10120123031 is an apocalyptic number.

10120123031 is a deficient number, since it is larger than the sum of its proper divisors (171527569).

10120123031 is an equidigital number, since it uses as much as digits as its factorization.

10120123031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171527568.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 10120123031 its reverse (13032102101), we get a palindrome (23152225132).

The spelling of 10120123031 in words is "ten billion, one hundred twenty million, one hundred twenty-three thousand, thirty-one".