253121430013 has 8 divisors (see below), whose sum is σ = 266692877600. Its totient is φ = 239574909168.

The previous prime is 253121429879. The next prime is 253121430043. The reversal of 253121430013 is 310034121352.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 253121430013 - 2³⁷ = 115682476541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 253121430013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253121430043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6210831 + ... + 6251452.

It is an arithmetic number, because the mean of its divisors is an integer number (33336609700).

Almost surely, 2^253121430013 is an apocalyptic number.

It is an amenable number.

253121430013 is a deficient number, since it is larger than the sum of its proper divisors (13571447587).

253121430013 is a wasteful number, since it uses less digits than its factorization.

253121430013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12463371.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 253121430013 its reverse (310034121352), we get a palindrome (563155551365).

The spelling of 253121430013 in words is "two hundred fifty-three billion, one hundred twenty-one million, four hundred thirty thousand, thirteen".