402144502023 has 12 divisors (see below), whose sum is σ = 633682245768. Its totient is φ = 243723940560.

The previous prime is 402144502013. The next prime is 402144502043. The reversal of 402144502023 is 320205441204.

402144502023 is a `hidden beast` number, since 4 + 0 + 2 + 1 + 4 + 450 + 202 + 3 = 666.

It is not a de Polignac number, because 402144502023 - 2⁴ = 402144502007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402144502013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2031032740 + ... + 2031032937.

It is an arithmetic number, because the mean of its divisors is an integer number (52806853814).

Almost surely, 2^402144502023 is an apocalyptic number.

402144502023 is a deficient number, since it is larger than the sum of its proper divisors (231537743745).

402144502023 is a wasteful number, since it uses less digits than its factorization.

402144502023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4062065694 (or 4062065691 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 402144502023 its reverse (320205441204), we get a palindrome (722349943227).

The spelling of 402144502023 in words is "four hundred two billion, one hundred forty-four million, five hundred two thousand, twenty-three".