12802019831 has 2 divisors, whose sum is σ = 12802019832. Its totient is φ = 12802019830.

The previous prime is 12802019819. The next prime is 12802019851. The reversal of 12802019831 is 13891020821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12802019831 - 2¹⁰ = 12802018807 is a prime.

It is a super-2 number, since 2×12802019831² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12802019791 and 12802019800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12802019851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6401009915 + 6401009916.

It is an arithmetic number, because the mean of its divisors is an integer number (6401009916).

Almost surely, 2^12802019831 is an apocalyptic number.

12802019831 is a deficient number, since it is larger than the sum of its proper divisors (1).

12802019831 is an equidigital number, since it uses as much as digits as its factorization.

12802019831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 35.

The spelling of 12802019831 in words is "twelve billion, eight hundred two million, nineteen thousand, eight hundred thirty-one".