23431400142136 has 16 divisors (see below), whose sum is σ = 50210143161840. Its totient is φ = 10042028632320.

The previous prime is 23431400142049. The next prime is 23431400142149. The reversal of 23431400142136 is 63124100413432.

It is a super-2 number, since 2×23431400142136² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209208929785 + ... + 209208929896.

It is an arithmetic number, because the mean of its divisors is an integer number (3138133947615).

Almost surely, 2^{23431400142136} is an apocalyptic number.

It is an amenable number.

23431400142136 is an abundant number, since it is smaller than the sum of its proper divisors (26778743019704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23431400142136 is a wasteful number, since it uses less digits than its factorization.

23431400142136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418417859694 (or 418417859690 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 23431400142136 its reverse (63124100413432), we get a palindrome (86555500555568).

The spelling of 23431400142136 in words is "twenty-three trillion, four hundred thirty-one billion, four hundred million, one hundred forty-two thousand, one hundred thirty-six".