31012113110102 has 4 divisors (see below), whose sum is σ = 46518169665156. Its totient is φ = 15506056555050.

The previous prime is 31012113110071. The next prime is 31012113110117. The reversal of 31012113110102 is 20101131121013.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7753028277524 + ... + 7753028277527.

It is an arithmetic number, because the mean of its divisors is an integer number (11629542416289).

Almost surely, 2^{31012113110102} is an apocalyptic number.

31012113110102 is a deficient number, since it is larger than the sum of its proper divisors (15506056555054).

31012113110102 is a wasteful number, since it uses less digits than its factorization.

31012113110102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15506056555053.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 31012113110102 its reverse (20101131121013), we get a palindrome (51113244231115).

The spelling of 31012113110102 in words is "thirty-one trillion, twelve billion, one hundred thirteen million, one hundred ten thousand, one hundred two".