12115522351 has 2 divisors, whose sum is σ = 12115522352. Its totient is φ = 12115522350.

The previous prime is 12115522291. The next prime is 12115522361. The reversal of 12115522351 is 15322551121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12115522351 - 2¹¹ = 12115520303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12115522361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6057761175 + 6057761176.

It is an arithmetic number, because the mean of its divisors is an integer number (6057761176).

Almost surely, 2^12115522351 is an apocalyptic number.

12115522351 is a deficient number, since it is larger than the sum of its proper divisors (1).

12115522351 is an equidigital number, since it uses as much as digits as its factorization.

12115522351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3000, while the sum is 28.

The spelling of 12115522351 in words is "twelve billion, one hundred fifteen million, five hundred twenty-two thousand, three hundred fifty-one".