140120314323431 has 32 divisors (see below), whose sum is σ = 154078233361920. Its totient is φ = 126636244992000.

The previous prime is 140120314323389. The next prime is 140120314323449. The reversal of 140120314323431 is 134323413021041.

It is a cyclic number.

It is not a de Polignac number, because 140120314323431 - 2²⁶ = 140120247214567 is a prime.

It is a super-2 number, since 2×140120314323431² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140120314323131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1697789975 + ... + 1697872503.

It is an arithmetic number, because the mean of its divisors is an integer number (4814944792560).

Almost surely, 2^{140120314323431} is an apocalyptic number.

140120314323431 is a deficient number, since it is larger than the sum of its proper divisors (13957919038489).

140120314323431 is a wasteful number, since it uses less digits than its factorization.

140120314323431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92427.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 140120314323431 its reverse (134323413021041), we get a palindrome (274443727344472).

The spelling of 140120314323431 in words is "one hundred forty trillion, one hundred twenty billion, three hundred fourteen million, three hundred twenty-three thousand, four hundred thirty-one".