31542143308 has 24 divisors (see below), whose sum is σ = 59466842960. Its totient is φ = 14552516160.

The previous prime is 31542143299. The next prime is 31542143377. The reversal of 31542143308 is 80334124513.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30958 + ... + 253066.

Almost surely, 2^31542143308 is an apocalyptic number.

It is an amenable number.

31542143308 is a deficient number, since it is larger than the sum of its proper divisors (27924699652).

31542143308 is a wasteful number, since it uses less digits than its factorization.

31542143308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224857 (or 224855 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 31542143308 in words is "thirty-one billion, five hundred forty-two million, one hundred forty-three thousand, three hundred eight".