31430034243102 has 64 divisors (see below), whose sum is σ = 69484829508864. Its totient is φ = 9398527549440.

The previous prime is 31430034243043. The next prime is 31430034243109. The reversal of 31430034243102 is 20134243003413.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31430034243102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31430034243109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6843793 + ... + 10473660.

It is an arithmetic number, because the mean of its divisors is an integer number (1085700461076).

Almost surely, 2^{31430034243102} is an apocalyptic number.

31430034243102 is an abundant number, since it is smaller than the sum of its proper divisors (38054795265762).

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

31430034243102 is a wasteful number, since it uses less digits than its factorization.

31430034243102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17317833.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 31430034243102 its reverse (20134243003413), we get a palindrome (51564277246515).

The spelling of 31430034243102 in words is "thirty-one trillion, four hundred thirty billion, thirty-four million, two hundred forty-three thousand, one hundred two".