10399973431 has 8 divisors (see below), whose sum is σ = 11309351760. Its totient is φ = 9523663488.

The previous prime is 10399973413. The next prime is 10399973473. The reversal of 10399973431 is 13437999301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10399973431 - 2²⁹ = 9863102519 is a prime.

It is a super-2 number, since 2×10399973431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10399973491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8266441 + ... + 8267698.

It is an arithmetic number, because the mean of its divisors is an integer number (1413668970).

Almost surely, 2^10399973431 is an apocalyptic number.

10399973431 is a deficient number, since it is larger than the sum of its proper divisors (909378329).

10399973431 is a wasteful number, since it uses less digits than its factorization.

10399973431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16534193.

The product of its (nonzero) digits is 551124, while the sum is 49.

The spelling of 10399973431 in words is "ten billion, three hundred ninety-nine million, nine hundred seventy-three thousand, four hundred thirty-one".