140231312234 has 16 divisors (see below), whose sum is σ = 228770355240. Its totient is φ = 64081329600.

The previous prime is 140231312233. The next prime is 140231312281. The reversal of 140231312234 is 432213132041.

It can be written as a sum of positive squares in 4 ways, for example, as 86080626025 + 54150686209 = 293395^2 + 232703^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (140231312233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26697929 + ... + 26703180.

Almost surely, 2^140231312234 is an apocalyptic number.

140231312234 is a deficient number, since it is larger than the sum of its proper divisors (88539043006).

140231312234 is a wasteful number, since it uses less digits than its factorization.

140231312234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53401225.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 140231312234 its reverse (432213132041), we get a palindrome (572444444275).

The spelling of 140231312234 in words is "one hundred forty billion, two hundred thirty-one million, three hundred twelve thousand, two hundred thirty-four".