31122431334 has 32 divisors (see below), whose sum is σ = 69194160000. Its totient is φ = 10369163592.

The previous prime is 31122431321. The next prime is 31122431359. The reversal of 31122431334 is 43313422113.

It is a happy number.

31122431334 is a `hidden beast` number, since 311 + 2 + 2 + 4 + 313 + 34 = 666.

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 = 31122431298 and 31122431307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23944 + ... + 250635.

It is an arithmetic number, because the mean of its divisors is an integer number (2162317500).

Almost surely, 2^31122431334 is an apocalyptic number.

31122431334 is an abundant number, since it is smaller than the sum of its proper divisors (38071728666).

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

31122431334 is a wasteful number, since it uses less digits than its factorization.

31122431334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276689 (or 276683 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 31122431334 its reverse (43313422113), we get a palindrome (74435853447).

The spelling of 31122431334 in words is "thirty-one billion, one hundred twenty-two million, four hundred thirty-one thousand, three hundred thirty-four".