31003132130 has 32 divisors (see below), whose sum is σ = 57332444976. Its totient is φ = 12062179584.

The previous prime is 31003132091. The next prime is 31003132133. The reversal of 31003132130 is 3123130013.

It can be written as a sum of positive squares in 8 ways, for example, as 3815409361 + 27187722769 = 61769^2 + 164887^2 .

It is a super-2 number, since 2×31003132130² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31003132099 and 31003132108.

It is not an unprimeable number, because it can be changed into a prime (31003132133) 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 15 ways as a sum of consecutive naturals, for example, 1304312 + ... + 1327868.

Almost surely, 2^31003132130 is an apocalyptic number.

31003132130 is a deficient number, since it is larger than the sum of its proper divisors (26329312846).

31003132130 is a wasteful number, since it uses less digits than its factorization.

31003132130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27158.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 31003132130 its reverse (3123130013), we get a palindrome (34126262143).

The spelling of 31003132130 in words is "thirty-one billion, three million, one hundred thirty-two thousand, one hundred thirty".