11615130251 has 16 divisors (see below), whose sum is σ = 12187880448. Its totient is φ = 11055290400.

The previous prime is 11615130239. The next prime is 11615130277. The reversal of 11615130251 is 15203151611.

It is a cyclic number.

It is not a de Polignac number, because 11615130251 - 2⁶ = 11615130187 is a prime.

It is a super-2 number, since 2×11615130251² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11615130251.

It is not an unprimeable number, because it can be changed into a prime (11615130221) 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, 1431161 + ... + 1439253.

It is an arithmetic number, because the mean of its divisors is an integer number (761742528).

Almost surely, 2^11615130251 is an apocalyptic number.

11615130251 is a deficient number, since it is larger than the sum of its proper divisors (572750197).

11615130251 is an equidigital number, since it uses as much as digits as its factorization.

11615130251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8882.

The product of its (nonzero) digits is 900, while the sum is 26.

Adding to 11615130251 its reverse (15203151611), we get a palindrome (26818281862).

The spelling of 11615130251 in words is "eleven billion, six hundred fifteen million, one hundred thirty thousand, two hundred fifty-one".