31400412221000 has 64 divisors (see below), whose sum is σ = 73504480008960. Its totient is φ = 12555461400000.

The previous prime is 31400412220997. The next prime is 31400412221027. The reversal of 31400412221000 is 12221400413.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 15 ways as a sum of consecutive naturals, for example, 3207026 + ... + 8549025.

It is an arithmetic number, because the mean of its divisors is an integer number (1148507500140).

Almost surely, 2^{31400412221000} is an apocalyptic number.

It is an amenable number.

31400412221000 is an abundant number, since it is smaller than the sum of its proper divisors (42104067787960).

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

31400412221000 is a wasteful number, since it uses less digits than its factorization.

31400412221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11758743 (or 11758729 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 31400412221000 its reverse (12221400413), we get a palindrome (31412633621413).

The spelling of 31400412221000 in words is "thirty-one trillion, four hundred billion, four hundred twelve million, two hundred twenty-one thousand".