30031131012102 has 48 divisors (see below), whose sum is σ = 71040713672448. Its totient is φ = 9092901657840.

The previous prime is 30031131012097. The next prime is 30031131012107. The reversal of 30031131012102 is 20121013113003.

30031131012102 is a `hidden beast` number, since 30 + 0 + 311 + 310 + 1 + 2 + 10 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (30031131012097) and next prime (30031131012107).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30031131012107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61766178 + ... + 62250485.

It is an arithmetic number, because the mean of its divisors is an integer number (1480014868176).

Almost surely, 2^{30031131012102} is an apocalyptic number.

30031131012102 is an abundant number, since it is smaller than the sum of its proper divisors (41009582660346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30031131012102 is a wasteful number, since it uses less digits than its factorization.

30031131012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124017905 (or 124017902 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 30031131012102 its reverse (20121013113003), we get a palindrome (50152144125105).

The spelling of 30031131012102 in words is "thirty trillion, thirty-one billion, one hundred thirty-one million, twelve thousand, one hundred two".