31313200213134 has 64 divisors (see below), whose sum is σ = 79527177216000. Its totient is φ = 8946449828064.

The previous prime is 31313200213123. The next prime is 31313200213153. The reversal of 31313200213134 is 43131200231313.

31313200213134 is a `hidden beast` number, since 3 + 1 + 3 + 1 + 320 + 0 + 21 + 313 + 4 = 666.

It is a super-2 number, since 2×31313200213134² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 31313200213098 and 31313200213107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18720592 + ... + 20324540.

It is an arithmetic number, because the mean of its divisors is an integer number (1242612144000).

Almost surely, 2^{31313200213134} is an apocalyptic number.

31313200213134 is an abundant number, since it is smaller than the sum of its proper divisors (48213977002866).

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

31313200213134 is a wasteful number, since it uses less digits than its factorization.

31313200213134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655614 (or 1655608 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 31313200213134 its reverse (43131200231313), we get a palindrome (74444400444447).

The spelling of 31313200213134 in words is "thirty-one trillion, three hundred thirteen billion, two hundred million, two hundred thirteen thousand, one hundred thirty-four".