31313412133140 has 24 divisors (see below), whose sum is σ = 87677553972960. Its totient is φ = 8350243235488.

The previous prime is 31313412133123. The next prime is 31313412133163. The reversal of 31313412133140 is 4133121431313.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 31313412133098 and 31313412133107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260945101050 + ... + 260945101169.

It is an arithmetic number, because the mean of its divisors is an integer number (3653231415540).

Almost surely, 2^{31313412133140} is an apocalyptic number.

31313412133140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31313412133140 is an abundant number, since it is smaller than the sum of its proper divisors (56364141839820).

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

31313412133140 is a wasteful number, since it uses less digits than its factorization.

31313412133140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521890202231 (or 521890202229 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

Adding to 31313412133140 its reverse (4133121431313), we get a palindrome (35446533564453).

The spelling of 31313412133140 in words is "thirty-one trillion, three hundred thirteen billion, four hundred twelve million, one hundred thirty-three thousand, one hundred forty".