13431311430 has 32 divisors (see below), whose sum is σ = 33346706400. Its totient is φ = 3458176512.

The previous prime is 13431311393. The next prime is 13431311437. The reversal of 13431311430 is 3411313431.

It is a self number, because there is not a number n which added to its sum of digits gives 13431311430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13431311437) 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, 7718275 + ... + 7720014.

It is an arithmetic number, because the mean of its divisors is an integer number (1042084575).

Almost surely, 2^13431311430 is an apocalyptic number.

13431311430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13431311430 is an abundant number, since it is smaller than the sum of its proper divisors (19915394970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13431311430 is a wasteful number, since it uses less digits than its factorization.

13431311430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15438328.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 13431311430 its reverse (3411313431), we get a palindrome (16842624861).

The spelling of 13431311430 in words is "thirteen billion, four hundred thirty-one million, three hundred eleven thousand, four hundred thirty".