31104200442120 has 128 divisors (see below), whose sum is σ = 100492853126400. Its totient is φ = 7656238808064.

The previous prime is 31104200442109. The next prime is 31104200442121. The reversal of 31104200442120 is 2124400240113.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (31104200442121) 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, 73716469 + ... + 74137211.

It is an arithmetic number, because the mean of its divisors is an integer number (785100415050).

Almost surely, 2^{31104200442120} is an apocalyptic number.

31104200442120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31104200442120 is an abundant number, since it is smaller than the sum of its proper divisors (69388652684280).

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

31104200442120 is a wasteful number, since it uses less digits than its factorization.

31104200442120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468159 (or 468155 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 31104200442120 its reverse (2124400240113), we get a palindrome (33228600682233).

The spelling of 31104200442120 in words is "thirty-one trillion, one hundred four billion, two hundred million, four hundred forty-two thousand, one hundred twenty".