31132475130 has 32 divisors (see below), whose sum is σ = 75984350400. Its totient is φ = 8161281152.

The previous prime is 31132475119. The next prime is 31132475159. The reversal of 31132475130 is 3157423113.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8792715 + ... + 8796254.

It is an arithmetic number, because the mean of its divisors is an integer number (2374510950).

Almost surely, 2^31132475130 is an apocalyptic number.

31132475130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31132475130 is an abundant number, since it is smaller than the sum of its proper divisors (44851875270).

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

31132475130 is a wasteful number, since it uses less digits than its factorization.

31132475130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17589038.

The product of its (nonzero) digits is 7560, while the sum is 30.

Adding to 31132475130 its reverse (3157423113), we get a palindrome (34289898243).

The spelling of 31132475130 in words is "thirty-one billion, one hundred thirty-two million, four hundred seventy-five thousand, one hundred thirty".