31200034020144 has 160 divisors (see below), whose sum is σ = 93969659056896. Its totient is φ = 8815242485760.

The previous prime is 31200034020143. The next prime is 31200034020203. The reversal of 31200034020144 is 44102043000213.

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 (31200034020143) 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, 15282277 + ... + 17203140.

Almost surely, 2^{31200034020144} is an apocalyptic number.

31200034020144 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31200034020144 is an abundant number, since it is smaller than the sum of its proper divisors (62769625036752).

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

31200034020144 is a wasteful number, since it uses less digits than its factorization.

31200034020144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32485563 (or 32485557 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 31200034020144 its reverse (44102043000213), we get a palindrome (75302077020357).

The spelling of 31200034020144 in words is "thirty-one trillion, two hundred billion, thirty-four million, twenty thousand, one hundred forty-four".