31023123100102 has 16 divisors (see below), whose sum is σ = 53205956213760. Its totient is φ = 13289759318088.

The previous prime is 31023123100097. The next prime is 31023123100127. The reversal of 31023123100102 is 20100132132013.

It is a super-2 number, since 2×31023123100102² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31023123100102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488706102 + ... + 488769577.

It is an arithmetic number, because the mean of its divisors is an integer number (3325372263360).

Almost surely, 2^{31023123100102} is an apocalyptic number.

31023123100102 is a deficient number, since it is larger than the sum of its proper divisors (22182833113658).

31023123100102 is a wasteful number, since it uses less digits than its factorization.

31023123100102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977477955.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31023123100102 its reverse (20100132132013), we get a palindrome (51123255232115).

The spelling of 31023123100102 in words is "thirty-one trillion, twenty-three billion, one hundred twenty-three million, one hundred thousand, one hundred two".