231140214140 has 48 divisors (see below), whose sum is σ = 546602563584. Its totient is φ = 81339662400.

The previous prime is 231140214103. The next prime is 231140214157. The reversal of 231140214140 is 41412041132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16938944 + ... + 16952583.

It is an arithmetic number, because the mean of its divisors is an integer number (11387553408).

Almost surely, 2^231140214140 is an apocalyptic number.

231140214140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231140214140 is an abundant number, since it is smaller than the sum of its proper divisors (315462349444).

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

231140214140 is a wasteful number, since it uses less digits than its factorization.

231140214140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33891578 (or 33891576 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 231140214140 its reverse (41412041132), we get a palindrome (272552255272).

The spelling of 231140214140 in words is "two hundred thirty-one billion, one hundred forty million, two hundred fourteen thousand, one hundred forty".