3130431556 has 24 divisors (see below), whose sum is σ = 6262074560. Its totient is φ = 1341353952.

The previous prime is 3130431541. The next prime is 3130431559. The reversal of 3130431556 is 6551340313.

It is a super-2 number, since 2×3130431556² = 19599203453601162272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3130431559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232546 + ... + 245638.

Almost surely, 2^3130431556 is an apocalyptic number.

It is an amenable number.

3130431556 is an abundant number, since it is smaller than the sum of its proper divisors (3131643004).

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

3130431556 is a wasteful number, since it uses less digits than its factorization.

3130431556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21643 (or 21641 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 3130431556 is about 55950.2596598086. The cubic root of 3130431556 is about 1462.8554170261.

Adding to 3130431556 its reverse (6551340313), we get a palindrome (9681771869).

The spelling of 3130431556 in words is "three billion, one hundred thirty million, four hundred thirty-one thousand, five hundred fifty-six".