15103320451 has 2 divisors, whose sum is σ = 15103320452. Its totient is φ = 15103320450.

The previous prime is 15103320403. The next prime is 15103320469. The reversal of 15103320451 is 15402330151.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15103320451 - 2¹¹ = 15103318403 is a prime.

It is a super-2 number, since 2×15103320451² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15103120451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7551660225 + 7551660226.

It is an arithmetic number, because the mean of its divisors is an integer number (7551660226).

Almost surely, 2^15103320451 is an apocalyptic number.

15103320451 is a deficient number, since it is larger than the sum of its proper divisors (1).

15103320451 is an equidigital number, since it uses as much as digits as its factorization.

15103320451 is an evil number, because the sum of its binary digits is even.

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

The spelling of 15103320451 in words is "fifteen billion, one hundred three million, three hundred twenty thousand, four hundred fifty-one".