15131420033 has 4 divisors (see below), whose sum is σ = 15168416580. Its totient is φ = 15094423488.

The previous prime is 15131420009. The next prime is 15131420039. The reversal of 15131420033 is 33002413151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33002413151 = 211 ⋅156409541.

It can be written as a sum of positive squares in 2 ways, for example, as 12781885249 + 2349534784 = 113057^2 + 48472^2 .

It is a cyclic number.

It is not a de Polignac number, because 15131420033 - 2⁶ = 15131419969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15131419990 and 15131420008.

It is not an unprimeable number, because it can be changed into a prime (15131420039) 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, 18497660 + ... + 18498477.

It is an arithmetic number, because the mean of its divisors is an integer number (3792104145).

Almost surely, 2^15131420033 is an apocalyptic number.

It is an amenable number.

15131420033 is a deficient number, since it is larger than the sum of its proper divisors (36996547).

15131420033 is an equidigital number, since it uses as much as digits as its factorization.

15131420033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36996546.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 15131420033 its reverse (33002413151), we get a palindrome (48133833184).

The spelling of 15131420033 in words is "fifteen billion, one hundred thirty-one million, four hundred twenty thousand, thirty-three".