252120041231 has 4 divisors (see below), whose sum is σ = 252321900000. Its totient is φ = 251918182464.

The previous prime is 252120041227. The next prime is 252120041249. The reversal of 252120041231 is 132140021252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252120041231 - 2² = 252120041227 is a prime.

It is a super-2 number, since 2×252120041231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252120041197 and 252120041206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252120041221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100927511 + ... + 100930008.

It is an arithmetic number, because the mean of its divisors is an integer number (63080475000).

Almost surely, 2^252120041231 is an apocalyptic number.

252120041231 is a deficient number, since it is larger than the sum of its proper divisors (201858769).

252120041231 is a wasteful number, since it uses less digits than its factorization.

252120041231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201858768.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 252120041231 its reverse (132140021252), we get a palindrome (384260062483).

The spelling of 252120041231 in words is "two hundred fifty-two billion, one hundred twenty million, forty-one thousand, two hundred thirty-one".