123413437431 has 16 divisors (see below), whose sum is σ = 182849879520. Its totient is φ = 82268804160.

The previous prime is 123413437363. The next prime is 123413437457. The reversal of 123413437431 is 134734314321.

123413437431 is a `hidden beast` number, since 123 + 4 + 134 + 374 + 31 = 666.

It is not a de Polignac number, because 123413437431 - 2⁹ = 123413436919 is a prime.

It is a super-2 number, since 2×123413437431² (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 (123413437471) 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, 153541 + ... + 520001.

It is an arithmetic number, because the mean of its divisors is an integer number (11428117470).

Almost surely, 2^123413437431 is an apocalyptic number.

123413437431 is a deficient number, since it is larger than the sum of its proper divisors (59436442089).

123413437431 is a wasteful number, since it uses less digits than its factorization.

123413437431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378943 (or 378937 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The spelling of 123413437431 in words is "one hundred twenty-three billion, four hundred thirteen million, four hundred thirty-seven thousand, four hundred thirty-one".