232121031211020 has 192 divisors, whose sum is σ = 743306760161280. Its totient is φ = 53019141193728.

The previous prime is 232121031210977. The next prime is 232121031211021. The reversal of 232121031211020 is 20112130121232.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (232121031211021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5506087782 + ... + 5506129938.

It is an arithmetic number, because the mean of its divisors is an integer number (3871389375840).

Almost surely, 2^{232121031211020} is an apocalyptic number.

232121031211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232121031211020 is an abundant number, since it is smaller than the sum of its proper divisors (511185728950260).

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

232121031211020 is a wasteful number, since it uses less digits than its factorization.

232121031211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51032 (or 51030 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 232121031211020 its reverse (20112130121232), we get a palindrome (252233161332252).

The spelling of 232121031211020 in words is "two hundred thirty-two trillion, one hundred twenty-one billion, thirty-one million, two hundred eleven thousand, twenty".