15132120011 has 4 divisors (see below), whose sum is σ = 15928547400. Its totient is φ = 14335692624.

The previous prime is 15132120007. The next prime is 15132120043. The reversal of 15132120011 is 11002123151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11002123151 = 71 ⋅154959481.

It is a cyclic number.

It is not a de Polignac number, because 15132120011 - 2² = 15132120007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15132122011) 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, 398213666 + ... + 398213703.

It is an arithmetic number, because the mean of its divisors is an integer number (3982136850).

Almost surely, 2^15132120011 is an apocalyptic number.

15132120011 is a deficient number, since it is larger than the sum of its proper divisors (796427389).

15132120011 is an equidigital number, since it uses as much as digits as its factorization.

15132120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796427388.

The product of its (nonzero) digits is 60, while the sum is 17.

Adding to 15132120011 its reverse (11002123151), we get a palindrome (26134243162).

The spelling of 15132120011 in words is "fifteen billion, one hundred thirty-two million, one hundred twenty thousand, eleven".