253130012442 has 28 divisors (see below), whose sum is σ = 569282109450. Its totient is φ = 84376670328.

The previous prime is 253130012431. The next prime is 253130012459. The reversal of 253130012442 is 244210031352.

253130012442 is a `hidden beast` number, since 2 + 531 + 3 + 0 + 0 + 124 + 4 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 134380163241 + 118749849201 = 366579^2 + 344601^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 86805817 + ... + 86808732.

Almost surely, 2^253130012442 is an apocalyptic number.

253130012442 is an abundant number, since it is smaller than the sum of its proper divisors (316152097008).

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

253130012442 is an equidigital number, since it uses as much as digits as its factorization.

253130012442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173614569 (or 173614554 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 253130012442 its reverse (244210031352), we get a palindrome (497340043794).

The spelling of 253130012442 in words is "two hundred fifty-three billion, one hundred thirty million, twelve thousand, four hundred forty-two".