31201100130 has 32 divisors (see below), whose sum is σ = 74894712768. Its totient is φ = 8318952000.

The previous prime is 31201100129. The next prime is 31201100137. The reversal of 31201100130 is 3100110213.

It is not an unprimeable number, because it can be changed into a prime (31201100137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112920 + ... + 274140.

It is an arithmetic number, because the mean of its divisors is an integer number (2340459774).

Almost surely, 2^31201100130 is an apocalyptic number.

31201100130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31201100130 is an abundant number, since it is smaller than the sum of its proper divisors (43693612638).

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

31201100130 is a wasteful number, since it uses less digits than its factorization.

31201100130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167682.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 31201100130 its reverse (3100110213), we get a palindrome (34301210343).

The spelling of 31201100130 in words is "thirty-one billion, two hundred one million, one hundred thousand, one hundred thirty".