12402023229 has 24 divisors (see below), whose sum is σ = 18532558200. Its totient is φ = 7985806848.

The previous prime is 12402023203. The next prime is 12402023233. The reversal of 12402023229 is 92232020421.

12402023229 is a `hidden beast` number, since 1 + 2 + 402 + 0 + 232 + 29 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1101908025 + 11300115204 = 33195^2 + 106302^2 .

It is not a de Polignac number, because 12402023229 - 2²⁸ = 12133587773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12402023629) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90304 + ... + 181545.

It is an arithmetic number, because the mean of its divisors is an integer number (772189925).

Almost surely, 2^12402023229 is an apocalyptic number.

It is an amenable number.

12402023229 is a deficient number, since it is larger than the sum of its proper divisors (6130534971).

12402023229 is a wasteful number, since it uses less digits than its factorization.

12402023229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272029 (or 272026 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The spelling of 12402023229 in words is "twelve billion, four hundred two million, twenty-three thousand, two hundred twenty-nine".