231204012620 has 24 divisors (see below), whose sum is σ = 554889630624. Its totient is φ = 79269947136.

The previous prime is 231204012601. The next prime is 231204012643. The reversal of 231204012620 is 26210402132.

It is a happy 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, 825728477 + ... + 825728756.

It is an arithmetic number, because the mean of its divisors is an integer number (23120401276).

Almost surely, 2^231204012620 is an apocalyptic number.

231204012620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231204012620 is an abundant number, since it is smaller than the sum of its proper divisors (323685618004).

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

231204012620 is a wasteful number, since it uses less digits than its factorization.

231204012620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651457249 (or 1651457247 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 231204012620 its reverse (26210402132), we get a palindrome (257414414752).

The spelling of 231204012620 in words is "two hundred thirty-one billion, two hundred four million, twelve thousand, six hundred twenty".