16031431430 has 48 divisors (see below), whose sum is σ = 33594621696. Its totient is φ = 5492108160.

The previous prime is 16031431397. The next prime is 16031431483. The reversal of 16031431430 is 3413413061.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16031431430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 634907 + ... + 659673.

It is an arithmetic number, because the mean of its divisors is an integer number (699887952).

Almost surely, 2^16031431430 is an apocalyptic number.

16031431430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16031431430 is an abundant number, since it is smaller than the sum of its proper divisors (17563190266).

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

16031431430 is a wasteful number, since it uses less digits than its factorization.

16031431430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26109 (or 26102 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 16031431430 its reverse (3413413061), we get a palindrome (19444844491).

The spelling of 16031431430 in words is "sixteen billion, thirty-one million, four hundred thirty-one thousand, four hundred thirty".