231219401952 has 192 divisors, whose sum is σ = 796545792000. Its totient is φ = 56896058880.

The previous prime is 231219401929. The next prime is 231219402013. The reversal of 231219401952 is 259104912132.

It is a self number, because there is not a number n which added to its sum of digits gives 231219401952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 682702 + ... + 963597.

It is an arithmetic number, because the mean of its divisors is an integer number (4148676000).

Almost surely, 2^231219401952 is an apocalyptic number.

231219401952 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

231219401952 is an abundant number, since it is smaller than the sum of its proper divisors (565326390048).

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

231219401952 is a wasteful number, since it uses less digits than its factorization.

231219401952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646349 (or 1646341 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 231219401952 in words is "two hundred thirty-one billion, two hundred nineteen million, four hundred one thousand, nine hundred fifty-two".