10102103031 has 4 divisors (see below), whose sum is σ = 13469470712. Its totient is φ = 6734735352.

The previous prime is 10102103003. The next prime is 10102103051. The reversal of 10102103031 is 13030120101.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-10102103031 is a prime.

It is a super-2 number, since 2×10102103031² (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 = 10102102998 and 10102103016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10102103051) 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, 1683683836 + ... + 1683683841.

It is an arithmetic number, because the mean of its divisors is an integer number (3367367678).

Almost surely, 2^10102103031 is an apocalyptic number.

10102103031 is a deficient number, since it is larger than the sum of its proper divisors (3367367681).

10102103031 is an equidigital number, since it uses as much as digits as its factorization.

10102103031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367367680.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 10102103031 its reverse (13030120101), we get a palindrome (23132223132).

The spelling of 10102103031 in words is "ten billion, one hundred two million, one hundred three thousand, thirty-one".