31321423134200 has 96 divisors (see below), whose sum is σ = 75176373404160. Its totient is φ = 12123622204800.

The previous prime is 31321423134187. The next prime is 31321423134233. The reversal of 31321423134200 is 243132412313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98563967 + ... + 98881233.

It is an arithmetic number, because the mean of its divisors is an integer number (783087222960).

Almost surely, 2^{31321423134200} is an apocalyptic number.

It is an amenable number.

31321423134200 is an abundant number, since it is smaller than the sum of its proper divisors (43854950269960).

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

31321423134200 is a wasteful number, since it uses less digits than its factorization.

31321423134200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333237 (or 333228 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 31321423134200 its reverse (243132412313), we get a palindrome (31564555546513).

The spelling of 31321423134200 in words is "thirty-one trillion, three hundred twenty-one billion, four hundred twenty-three million, one hundred thirty-four thousand, two hundred".