15420232015013 has 4 divisors (see below), whose sum is σ = 17623122302880. Its totient is φ = 13217341727148.

The previous prime is 15420232015009. The next prime is 15420232015093. The reversal of 15420232015013 is 31051023202451.

15420232015013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15420232015013 - 2² = 15420232015009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15420232015093) 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, 1101445143923 + ... + 1101445143936.

It is an arithmetic number, because the mean of its divisors is an integer number (4405780575720).

Almost surely, 2^{15420232015013} is an apocalyptic number.

It is an amenable number.

15420232015013 is a deficient number, since it is larger than the sum of its proper divisors (2202890287867).

15420232015013 is an equidigital number, since it uses as much as digits as its factorization.

15420232015013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202890287866.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 15420232015013 its reverse (31051023202451), we get a palindrome (46471255217464).

The spelling of 15420232015013 in words is "fifteen trillion, four hundred twenty billion, two hundred thirty-two million, fifteen thousand, thirteen".