231212880 has 200 divisors, whose sum is σ = 829661184. Its totient is φ = 59616000.

The previous prime is 231212837. The next prime is 231212897. The reversal of 231212880 is 88212132.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 200305 + ... + 201455.

Almost surely, 2^231212880 is an apocalyptic number.

231212880 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 231212880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (414830592).

231212880 is an abundant number, since it is smaller than the sum of its proper divisors (598448304).

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

231212880 is a wasteful number, since it uses less digits than its factorization.

231212880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207 (or 1192 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 231212880 is about 15205.6857786816. The cubic root of 231212880 is about 613.7676691404.

It can be divided in two parts, 23 and 1212880, that added together give a triangular number (1212903 = T₁₅₅₇).

The spelling of 231212880 in words is "two hundred thirty-one million, two hundred twelve thousand, eight hundred eighty".