231390789000 has 384 divisors, whose sum is σ = 866914513920. Its totient is φ = 51182208000.

The previous prime is 231390788953. The next prime is 231390789013. The reversal of 231390789000 is 987093132.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4531612 + ... + 4582388.

It is an arithmetic number, because the mean of its divisors is an integer number (2257589880).

Almost surely, 2^231390789000 is an apocalyptic number.

231390789000 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 231390789000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (433457256960).

231390789000 is an abundant number, since it is smaller than the sum of its proper divisors (635523724920).

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

231390789000 is a wasteful number, since it uses less digits than its factorization.

231390789000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50846 (or 50825 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The spelling of 231390789000 in words is "two hundred thirty-one billion, three hundred ninety million, seven hundred eighty-nine thousand".