202321431312 has 160 divisors (see below), whose sum is σ = 701758417920. Its totient is φ = 48508623360.

The previous prime is 202321431311. The next prime is 202321431313. The reversal of 202321431312 is 213134123202.

It is an interprime number because it is at equal distance from previous prime (202321431311) and next prime (202321431313).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (202321431311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2057362 + ... + 2153457.

It is an arithmetic number, because the mean of its divisors is an integer number (4385990112).

Almost surely, 2^202321431312 is an apocalyptic number.

202321431312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

202321431312 is an abundant number, since it is smaller than the sum of its proper divisors (499436986608).

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

202321431312 is a wasteful number, since it uses less digits than its factorization.

202321431312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4210861 (or 4210855 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 202321431312 its reverse (213134123202), we get a palindrome (415455554514).

The spelling of 202321431312 in words is "two hundred two billion, three hundred twenty-one million, four hundred thirty-one thousand, three hundred twelve".