31204102034420 has 96 divisors (see below), whose sum is σ = 75047096678400. Its totient is φ = 10676089517184.

The previous prime is 31204102034407. The next prime is 31204102034449. The reversal of 31204102034420 is 2443020140213.

It is a self number, because there is not a number n which added to its sum of digits gives 31204102034420.

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 31 ways as a sum of consecutive naturals, for example, 829458371 + ... + 829495989.

It is an arithmetic number, because the mean of its divisors is an integer number (781740590400).

Almost surely, 2^{31204102034420} is an apocalyptic number.

It is an amenable number.

31204102034420 is an abundant number, since it is smaller than the sum of its proper divisors (43842994643980).

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

31204102034420 is a wasteful number, since it uses less digits than its factorization.

31204102034420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49917 (or 49915 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 31204102034420 its reverse (2443020140213), we get a palindrome (33647122174633).

The spelling of 31204102034420 in words is "thirty-one trillion, two hundred four billion, one hundred two million, thirty-four thousand, four hundred twenty".