31263006542 has 16 divisors (see below), whose sum is σ = 50511900672. Its totient is φ = 14469553560.

The previous prime is 31263006521. The next prime is 31263006557. The reversal of 31263006542 is 24560036213.

It is a super-3 number, since 3×31263006542³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31263006499 and 31263006508.

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, 10960358 + ... + 10963209.

It is an arithmetic number, because the mean of its divisors is an integer number (3156993792).

Almost surely, 2^31263006542 is an apocalyptic number.

31263006542 is a deficient number, since it is larger than the sum of its proper divisors (19248894130).

31263006542 is a wasteful number, since it uses less digits than its factorization.

31263006542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21923623.

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 31263006542 in words is "thirty-one billion, two hundred sixty-three million, six thousand, five hundred forty-two".