31541325042 has 16 divisors (see below), whose sum is σ = 65257914240. Its totient is φ = 10151230992.

The previous prime is 31541325031. The next prime is 31541325077. The reversal of 31541325042 is 24052314513.

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, 90635818 + ... + 90636165.

It is an arithmetic number, because the mean of its divisors is an integer number (4078619640).

Almost surely, 2^31541325042 is an apocalyptic number.

31541325042 is an abundant number, since it is smaller than the sum of its proper divisors (33716589198).

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

31541325042 is a wasteful number, since it uses less digits than its factorization.

31541325042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181272017.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 31541325042 its reverse (24052314513), we get a palindrome (55593639555).

The spelling of 31541325042 in words is "thirty-one billion, five hundred forty-one million, three hundred twenty-five thousand, forty-two".