20229673431 has 16 divisors (see below), whose sum is σ = 29452711680. Its totient is φ = 12248853120.

The previous prime is 20229673393. The next prime is 20229673433. The reversal of 20229673431 is 13437692202.

It is not a de Polignac number, because 20229673431 - 2⁹ = 20229672919 is a prime.

It is a super-2 number, since 2×20229673431² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20229673431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20229673433) 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, 253266 + ... + 323423.

It is an arithmetic number, because the mean of its divisors is an integer number (1840794480).

Almost surely, 2^20229673431 is an apocalyptic number.

20229673431 is a deficient number, since it is larger than the sum of its proper divisors (9223038249).

20229673431 is a wasteful number, since it uses less digits than its factorization.

20229673431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577766.

The product of its (nonzero) digits is 108864, while the sum is 39.

The spelling of 20229673431 in words is "twenty billion, two hundred twenty-nine million, six hundred seventy-three thousand, four hundred thirty-one".