1230115412521 has 8 divisors (see below), whose sum is σ = 1244493209160. Its totient is φ = 1215749977728.

The previous prime is 1230115412507. The next prime is 1230115412551. The reversal of 1230115412521 is 1252145110321.

It can be written as a sum of positive squares in 4 ways, for example, as 17339622400 + 1212775790121 = 131680^2 + 1101261^2 .

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 1230115412521 - 2³³ = 1221525477929 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 1230115412521.

It is not an unprimeable number, because it can be changed into a prime (1230115412501) 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, 2890206 + ... + 3288391.

It is an arithmetic number, because the mean of its divisors is an integer number (155561651145).

Almost surely, 2^{1230115412521} is an apocalyptic number.

It is an amenable number.

1230115412521 is a deficient number, since it is larger than the sum of its proper divisors (14377796639).

1230115412521 is an equidigital number, since it uses as much as digits as its factorization.

1230115412521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6180923.

The product of its (nonzero) digits is 2400, while the sum is 28.

The spelling of 1230115412521 in words is "one trillion, two hundred thirty billion, one hundred fifteen million, four hundred twelve thousand, five hundred twenty-one".