13400430031 has 2 divisors, whose sum is σ = 13400430032. Its totient is φ = 13400430030.

The previous prime is 13400430023. The next prime is 13400430061. The reversal of 13400430031 is 13003400431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13400430031 - 2³ = 13400430023 is a prime.

It is a super-2 number, since 2×13400430031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13400429990 and 13400430008.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13400430061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6700215015 + 6700215016.

It is an arithmetic number, because the mean of its divisors is an integer number (6700215016).

Almost surely, 2^13400430031 is an apocalyptic number.

13400430031 is a deficient number, since it is larger than the sum of its proper divisors (1).

13400430031 is an equidigital number, since it uses as much as digits as its factorization.

13400430031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 13400430031 its reverse (13003400431), we get a palindrome (26403830462).

The spelling of 13400430031 in words is "thirteen billion, four hundred million, four hundred thirty thousand, thirty-one".