31431104430000 has 200 divisors, whose sum is σ = 110687778522816. Its totient is φ = 7619661600000.

The previous prime is 31431104429951. The next prime is 31431104430013. The reversal of 31431104430000 is 3440113413.

It is a tau number, because it is divible by the number of its divisors (200).

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 47292886 + ... + 47952885.

Almost surely, 2^{31431104430000} is an apocalyptic number.

31431104430000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31431104430000 is an abundant number, since it is smaller than the sum of its proper divisors (79256674092816).

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

31431104430000 is a wasteful number, since it uses less digits than its factorization.

31431104430000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95245813 (or 95245792 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31431104430000 its reverse (3440113413), we get a palindrome (31434544543413).

The spelling of 31431104430000 in words is "thirty-one trillion, four hundred thirty-one billion, one hundred four million, four hundred thirty thousand".