13988212831 has 2 divisors, whose sum is σ = 13988212832. Its totient is φ = 13988212830.

The previous prime is 13988212783. The next prime is 13988212853. The reversal of 13988212831 is 13821288931.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13988212831 - 2¹¹ = 13988210783 is a prime.

It is a super-2 number, since 2×13988212831² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13988212531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6994106415 + 6994106416.

It is an arithmetic number, because the mean of its divisors is an integer number (6994106416).

Almost surely, 2^13988212831 is an apocalyptic number.

13988212831 is a deficient number, since it is larger than the sum of its proper divisors (1).

13988212831 is an equidigital number, since it uses as much as digits as its factorization.

13988212831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 46.

The spelling of 13988212831 in words is "thirteen billion, nine hundred eighty-eight million, two hundred twelve thousand, eight hundred thirty-one".