142404636231 has 48 divisors (see below), whose sum is σ = 242434063872. Its totient is φ = 79410542400.

The previous prime is 142404636223. The next prime is 142404636239. The reversal of 142404636231 is 132636404241.

142404636231 is a `hidden beast` number, since 1 + 4 + 24 + 0 + 4 + 6 + 3 + 623 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (142404636223) and next prime (142404636239).

It is not a de Polignac number, because 142404636231 - 2³ = 142404636223 is a prime.

It is a super-2 number, since 2×142404636231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142404636239) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 222366 + ... + 578148.

It is an arithmetic number, because the mean of its divisors is an integer number (5050709664).

Almost surely, 2^142404636231 is an apocalyptic number.

142404636231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

142404636231 is a deficient number, since it is larger than the sum of its proper divisors (100029427641).

142404636231 is a wasteful number, since it uses less digits than its factorization.

142404636231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356124 (or 356121 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 142404636231 in words is "one hundred forty-two billion, four hundred four million, six hundred thirty-six thousand, two hundred thirty-one".