231030501222000 has 320 divisors, whose sum is σ = 762486113765376. Its totient is φ = 60149974348800.

The previous prime is 231030501221959. The next prime is 231030501222047. The reversal of 231030501222000 is 222105030132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 614626114 + ... + 615001886.

Almost surely, 2^{231030501222000} is an apocalyptic number.

231030501222000 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 231030501222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381243056882688).

231030501222000 is an abundant number, since it is smaller than the sum of its proper divisors (531455612543376).

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

231030501222000 is a wasteful number, since it uses less digits than its factorization.

231030501222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378225 (or 378209 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 231030501222000 its reverse (222105030132), we get a palindrome (231252606252132).

The spelling of 231030501222000 in words is "two hundred thirty-one trillion, thirty billion, five hundred one million, two hundred twenty-two thousand".