12931401919 has 16 divisors (see below), whose sum is σ = 14087664000. Its totient is φ = 11823084000.

The previous prime is 12931401887. The next prime is 12931401929. The reversal of 12931401919 is 91910413921.

It is a cyclic number.

It is not a de Polignac number, because 12931401919 - 2⁵ = 12931401887 is a prime.

It is a super-2 number, since 2×12931401919² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12931401929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1787692 + ... + 1794910.

It is an arithmetic number, because the mean of its divisors is an integer number (880479000).

Almost surely, 2^12931401919 is an apocalyptic number.

12931401919 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12931401919 is a deficient number, since it is larger than the sum of its proper divisors (1156262081).

12931401919 is a wasteful number, since it uses less digits than its factorization.

12931401919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10518.

The product of its (nonzero) digits is 17496, while the sum is 40.

The spelling of 12931401919 in words is "twelve billion, nine hundred thirty-one million, four hundred one thousand, nine hundred nineteen".