31540133130 has 64 divisors (see below), whose sum is σ = 82847052288. Its totient is φ = 7621162560.

The previous prime is 31540133101. The next prime is 31540133137. The reversal of 31540133130 is 3133104513.

It is a self number, because there is not a number n which added to its sum of digits gives 31540133130.

It is not an unprimeable number, because it can be changed into a prime (31540133137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54352 + ... + 256971.

It is an arithmetic number, because the mean of its divisors is an integer number (1294485192).

Almost surely, 2^31540133130 is an apocalyptic number.

31540133130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31540133130 is an abundant number, since it is smaller than the sum of its proper divisors (51306919158).

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

31540133130 is a wasteful number, since it uses less digits than its factorization.

31540133130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311651.

The product of its (nonzero) digits is 1620, while the sum is 24.

Adding to 31540133130 its reverse (3133104513), we get a palindrome (34673237643).

The spelling of 31540133130 in words is "thirty-one billion, five hundred forty million, one hundred thirty-three thousand, one hundred thirty".