31020441542 has 16 divisors (see below), whose sum is σ = 50668599600. Its totient is φ = 14187206880.

The previous prime is 31020441541. The next prime is 31020441553. The reversal of 31020441542 is 24514402013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31020441541) 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, 14073509 + ... + 14075712.

It is an arithmetic number, because the mean of its divisors is an integer number (3166787475).

Almost surely, 2^31020441542 is an apocalyptic number.

31020441542 is a deficient number, since it is larger than the sum of its proper divisors (19648158058).

31020441542 is a wasteful number, since it uses less digits than its factorization.

31020441542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28149271.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 31020441542 its reverse (24514402013), we get a palindrome (55534843555).

The spelling of 31020441542 in words is "thirty-one billion, twenty million, four hundred forty-one thousand, five hundred forty-two".