231057455377100 has 144 divisors (see below), whose sum is σ = 548576208208896. Its totient is φ = 83775412512000.

The previous prime is 231057455377093. The next prime is 231057455377109. The reversal of 231057455377100 is 1773554750132.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (231057455377109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 569919662 + ... + 570324938.

Almost surely, 2^{231057455377100} is an apocalyptic number.

231057455377100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231057455377100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274288104104448).

231057455377100 is an abundant number, since it is smaller than the sum of its proper divisors (317518752831796).

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

231057455377100 is a wasteful number, since it uses less digits than its factorization.

231057455377100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406816 (or 406809 counting only the distinct ones).

The product of its (nonzero) digits is 3087000, while the sum is 50.

The spelling of 231057455377100 in words is "two hundred thirty-one trillion, fifty-seven billion, four hundred fifty-five million, three hundred seventy-seven thousand, one hundred".