15221354313 has 16 divisors (see below), whose sum is σ = 22406904576. Its totient is φ = 9113916240.

The previous prime is 15221354293. The next prime is 15221354329. The reversal of 15221354313 is 31345312251.

It is not a de Polignac number, because 15221354313 - 2⁶ = 15221354249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15221352313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2775895 + ... + 2781372.

It is an arithmetic number, because the mean of its divisors is an integer number (1400431536).

Almost surely, 2^15221354313 is an apocalyptic number.

It is an amenable number.

15221354313 is a deficient number, since it is larger than the sum of its proper divisors (7185550263).

15221354313 is a wasteful number, since it uses less digits than its factorization.

15221354313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5557364.

The product of its digits is 10800, while the sum is 30.

Adding to 15221354313 its reverse (31345312251), we get a palindrome (46566666564).

The spelling of 15221354313 in words is "fifteen billion, two hundred twenty-one million, three hundred fifty-four thousand, three hundred thirteen".