31300104500 has 96 divisors (see below), whose sum is σ = 78374290176. Its totient is φ = 10697232000.

The previous prime is 31300104469. The next prime is 31300104529. The reversal of 31300104500 is 540100313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1095395 + ... + 1123605.

It is an arithmetic number, because the mean of its divisors is an integer number (816398856).

Almost surely, 2^31300104500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31300104500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39187145088).

31300104500 is an abundant number, since it is smaller than the sum of its proper divisors (47074185676).

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

31300104500 is a wasteful number, since it uses less digits than its factorization.

31300104500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28554 (or 28542 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

Adding to 31300104500 its reverse (540100313), we get a palindrome (31840204813).

The spelling of 31300104500 in words is "thirty-one billion, three hundred million, one hundred four thousand, five hundred".