31300405542 has 48 divisors (see below), whose sum is σ = 82064934432. Its totient is φ = 8416915200.

The previous prime is 31300405471. The next prime is 31300405571. The reversal of 31300405542 is 24550400313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7304209 + ... + 7308492.

It is an arithmetic number, because the mean of its divisors is an integer number (1709686134).

Almost surely, 2^31300405542 is an apocalyptic number.

31300405542 is an abundant number, since it is smaller than the sum of its proper divisors (50764528890).

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

31300405542 is a wasteful number, since it uses less digits than its factorization.

31300405542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14612733 (or 14612730 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 31300405542 its reverse (24550400313), we get a palindrome (55850805855).

The spelling of 31300405542 in words is "thirty-one billion, three hundred million, four hundred five thousand, five hundred forty-two".