12130203931 has 4 divisors (see below), whose sum is σ = 12521500864. Its totient is φ = 11738907000.

The previous prime is 12130203853. The next prime is 12130203941. The reversal of 12130203931 is 13930203121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12130203931 - 2⁷ = 12130203803 is a prime.

It is a super-2 number, since 2×12130203931² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12130203896 and 12130203905.

It is not an unprimeable number, because it can be changed into a prime (12130203941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195648420 + ... + 195648481.

It is an arithmetic number, because the mean of its divisors is an integer number (3130375216).

Almost surely, 2^12130203931 is an apocalyptic number.

12130203931 is a deficient number, since it is larger than the sum of its proper divisors (391296933).

12130203931 is an equidigital number, since it uses as much as digits as its factorization.

12130203931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391296932.

The product of its (nonzero) digits is 972, while the sum is 25.

The spelling of 12130203931 in words is "twelve billion, one hundred thirty million, two hundred three thousand, nine hundred thirty-one".