231021423011040 has 48 divisors (see below), whose sum is σ = 727717482486288. Its totient is φ = 61605712802816.

The previous prime is 231021423011033. The next prime is 231021423011087. The reversal of 231021423011040 is 40110324120132.

231021423011040 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×231021423011040³ (a number of 44 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 231021423011040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240647315157 + ... + 240647316116.

It is an arithmetic number, because the mean of its divisors is an integer number (15160780885131).

Almost surely, 2^{231021423011040} is an apocalyptic number.

231021423011040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231021423011040 is an abundant number, since it is smaller than the sum of its proper divisors (496696059475248).

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

231021423011040 is a wasteful number, since it uses less digits than its factorization.

231021423011040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481294631291 (or 481294631283 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 231021423011040 its reverse (40110324120132), we get a palindrome (271131747131172).

The spelling of 231021423011040 in words is "two hundred thirty-one trillion, twenty-one billion, four hundred twenty-three million, eleven thousand, forty".