103202312031 has 128 divisors (see below), whose sum is σ = 193226342400. Its totient is φ = 52987893120.

The previous prime is 103202312021. The next prime is 103202312039. The reversal of 103202312031 is 130213202301.

103202312031 is a `hidden beast` number, since 1 + 0 + 320 + 2 + 312 + 0 + 31 = 666.

It is not a de Polignac number, because 103202312031 - 2¹⁰ = 103202311007 is a prime.

It is a super-2 number, since 2×103202312031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103202311995 and 103202312013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103202312039) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 22054150 + ... + 22058828.

It is an arithmetic number, because the mean of its divisors is an integer number (1509580800).

Almost surely, 2^103202312031 is an apocalyptic number.

103202312031 is a deficient number, since it is larger than the sum of its proper divisors (90024030369).

103202312031 is a wasteful number, since it uses less digits than its factorization.

103202312031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4946 (or 4940 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 103202312031 its reverse (130213202301), we get a palindrome (233415514332).

The spelling of 103202312031 in words is "one hundred three billion, two hundred two million, three hundred twelve thousand, thirty-one".