31020542242 has 16 divisors (see below), whose sum is σ = 49103202240. Its totient is φ = 14656921488.

The previous prime is 31020542183. The next prime is 31020542257. The reversal of 31020542242 is 24224502013.

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, 1013038 + ... + 1043209.

It is an arithmetic number, because the mean of its divisors is an integer number (3068950140).

Almost surely, 2^31020542242 is an apocalyptic number.

31020542242 is a deficient number, since it is larger than the sum of its proper divisors (18082659998).

31020542242 is a wasteful number, since it uses less digits than its factorization.

31020542242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056665.

The product of its (nonzero) digits is 3840, while the sum is 25.

The spelling of 31020542242 in words is "thirty-one billion, twenty million, five hundred forty-two thousand, two hundred forty-two".