31120545130 has 8 divisors (see below), whose sum is σ = 56016981252. Its totient is φ = 12448218048.

The previous prime is 31120545107. The next prime is 31120545233. The reversal of 31120545130 is 3154502113.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30555389601 + 565155529 = 174801^2 + 23773^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 31120545095 and 31120545104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1556027247 + ... + 1556027266.

Almost surely, 2^31120545130 is an apocalyptic number.

31120545130 is a deficient number, since it is larger than the sum of its proper divisors (24896436122).

31120545130 is a wasteful number, since it uses less digits than its factorization.

31120545130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3112054520.

The product of its (nonzero) digits is 1800, while the sum is 25.

The spelling of 31120545130 in words is "thirty-one billion, one hundred twenty million, five hundred forty-five thousand, one hundred thirty".