252011021443140 has 96 divisors (see below), whose sum is σ = 714577711680000. Its totient is φ = 66350893220352.

The previous prime is 252011021443043. The next prime is 252011021443163. The reversal of 252011021443140 is 41344120110252.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 252011021443098 and 252011021443107.

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, 239076366 + ... + 240128154.

It is an arithmetic number, because the mean of its divisors is an integer number (7443517830000).

Almost surely, 2^{252011021443140} is an apocalyptic number.

252011021443140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252011021443140 is an abundant number, since it is smaller than the sum of its proper divisors (462566690236860).

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

252011021443140 is a wasteful number, since it uses less digits than its factorization.

252011021443140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102429 (or 1102427 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 252011021443140 its reverse (41344120110252), we get a palindrome (293355141553392).

The spelling of 252011021443140 in words is "two hundred fifty-two trillion, eleven billion, twenty-one million, four hundred forty-three thousand, one hundred forty".