515230132401251 has 16 divisors (see below), whose sum is σ = 522249887308800. Its totient is φ = 508257803503008.

The previous prime is 515230132401221. The next prime is 515230132401253. The reversal of 515230132401251 is 152104231032515.

It is a cyclic number.

It is not a de Polignac number, because 515230132401251 - 2¹⁴ = 515230132384867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (515230132401253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1995780686 + ... + 1996038828.

It is an arithmetic number, because the mean of its divisors is an integer number (32640617956800).

Almost surely, 2^{515230132401251} is an apocalyptic number.

515230132401251 is a deficient number, since it is larger than the sum of its proper divisors (7019754907549).

515230132401251 is a wasteful number, since it uses less digits than its factorization.

515230132401251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349898.

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 515230132401251 its reverse (152104231032515), we get a palindrome (667334363433766).

The spelling of 515230132401251 in words is "five hundred fifteen trillion, two hundred thirty billion, one hundred thirty-two million, four hundred one thousand, two hundred fifty-one".