31123520342 has 16 divisors (see below), whose sum is σ = 49243338240. Its totient is φ = 14712438888.

The previous prime is 31123520341. The next prime is 31123520371. The reversal of 31123520342 is 24302532113.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31123520341) 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, 822398 + ... + 859409.

It is an arithmetic number, because the mean of its divisors is an integer number (3077708640).

Almost surely, 2^31123520342 is an apocalyptic number.

31123520342 is a deficient number, since it is larger than the sum of its proper divisors (18119817898).

31123520342 is a wasteful number, since it uses less digits than its factorization.

31123520342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682315.

The product of its (nonzero) digits is 4320, while the sum is 26.

The spelling of 31123520342 in words is "thirty-one billion, one hundred twenty-three million, five hundred twenty thousand, three hundred forty-two".