15040501121 has 2 divisors, whose sum is σ = 15040501122. Its totient is φ = 15040501120.

The previous prime is 15040501109. The next prime is 15040501129. The reversal of 15040501121 is 12110504051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10740420496 + 4300080625 = 103636^2 + 65575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15040501121 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 15040501093 and 15040501102.

It is not a weakly prime, because it can be changed into another prime (15040501129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7520250560 + 7520250561.

It is an arithmetic number, because the mean of its divisors is an integer number (7520250561).

Almost surely, 2^15040501121 is an apocalyptic number.

It is an amenable number.

15040501121 is a deficient number, since it is larger than the sum of its proper divisors (1).

15040501121 is an equidigital number, since it uses as much as digits as its factorization.

15040501121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200, while the sum is 20.

The spelling of 15040501121 in words is "fifteen billion, forty million, five hundred one thousand, one hundred twenty-one".