15012135043 has 4 divisors (see below), whose sum is σ = 15295382928. Its totient is φ = 14728887160.

The previous prime is 15012135037. The next prime is 15012135077. The reversal of 15012135043 is 34053121051.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15012135043 - 2⁹ = 15012134531 is a prime.

It is a super-2 number, since 2×15012135043² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15012134999 and 15012135017.

It is not an unprimeable number, because it can be changed into a prime (15012135013) 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, 141623863 + ... + 141623968.

It is an arithmetic number, because the mean of its divisors is an integer number (3823845732).

Almost surely, 2^15012135043 is an apocalyptic number.

15012135043 is a deficient number, since it is larger than the sum of its proper divisors (283247885).

15012135043 is an equidigital number, since it uses as much as digits as its factorization.

15012135043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283247884.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 15012135043 its reverse (34053121051), we get a palindrome (49065256094).

The spelling of 15012135043 in words is "fifteen billion, twelve million, one hundred thirty-five thousand, forty-three".