231434034100 has 72 divisors (see below), whose sum is σ = 506002995680. Its totient is φ = 91876394880.

The previous prime is 231434034079. The next prime is 231434034119. The reversal of 231434034100 is 1430434132.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12036094 + ... + 12055306.

Almost surely, 2^231434034100 is an apocalyptic number.

231434034100 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 231434034100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253001497840).

231434034100 is an abundant number, since it is smaller than the sum of its proper divisors (274568961580).

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

231434034100 is a wasteful number, since it uses less digits than its factorization.

231434034100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20129 (or 20122 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 231434034100 its reverse (1430434132), we get a palindrome (232864468232).

The spelling of 231434034100 in words is "two hundred thirty-one billion, four hundred thirty-four million, thirty-four thousand, one hundred".