231042203040 has 96 divisors (see below), whose sum is σ = 793945043136. Its totient is φ = 56010229760.

The previous prime is 231042203023. The next prime is 231042203087. The reversal of 231042203040 is 40302240132.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 231042202998 and 231042203016.

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, 21873717 + ... + 21884276.

It is an arithmetic number, because the mean of its divisors is an integer number (8270260866).

Almost surely, 2^231042203040 is an apocalyptic number.

231042203040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231042203040 is an abundant number, since it is smaller than the sum of its proper divisors (562902840096).

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

231042203040 is a wasteful number, since it uses less digits than its factorization.

231042203040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43758022 (or 43758014 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 231042203040 its reverse (40302240132), we get a palindrome (271344443172).

The spelling of 231042203040 in words is "two hundred thirty-one billion, forty-two million, two hundred three thousand, forty".