31343141256 has 192 divisors, whose sum is σ = 95627796480. Its totient is φ = 8519575680.

The previous prime is 31343141243. The next prime is 31343141267. The reversal of 31343141256 is 65214134313.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5163135 + ... + 5169201.

It is an arithmetic number, because the mean of its divisors is an integer number (498061440).

Almost surely, 2^31343141256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31343141256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47813898240).

31343141256 is an abundant number, since it is smaller than the sum of its proper divisors (64284655224).

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

31343141256 is a wasteful number, since it uses less digits than its factorization.

31343141256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6304 (or 6293 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

Adding to 31343141256 its reverse (65214134313), we get a palindrome (96557275569).

The spelling of 31343141256 in words is "thirty-one billion, three hundred forty-three million, one hundred forty-one thousand, two hundred fifty-six".