31330130010 has 32 divisors (see below), whose sum is σ = 75250648512. Its totient is φ = 8348219520.

The previous prime is 31330129993. The next prime is 31330130011. The reversal of 31330130010 is 1003103313.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (31330130011) 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, 365739 + ... + 443198.

It is an arithmetic number, because the mean of its divisors is an integer number (2351582766).

Almost surely, 2^31330130010 is an apocalyptic number.

31330130010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31330130010 is an abundant number, since it is smaller than the sum of its proper divisors (43920518502).

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

31330130010 is a wasteful number, since it uses less digits than its factorization.

31330130010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810238.

The product of its (nonzero) digits is 81, while the sum is 15.

Adding to 31330130010 its reverse (1003103313), we get a palindrome (32333233323).

The spelling of 31330130010 in words is "thirty-one billion, three hundred thirty million, one hundred thirty thousand, ten".