11988603331 has 2 divisors, whose sum is σ = 11988603332. Its totient is φ = 11988603330.

The previous prime is 11988603323. The next prime is 11988603373. The reversal of 11988603331 is 13330688911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11988603331 - 2³ = 11988603323 is a prime.

It is a super-2 number, since 2×11988603331² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11988603301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5994301665 + 5994301666.

It is an arithmetic number, because the mean of its divisors is an integer number (5994301666).

Almost surely, 2^11988603331 is an apocalyptic number.

11988603331 is a deficient number, since it is larger than the sum of its proper divisors (1).

11988603331 is an equidigital number, since it uses as much as digits as its factorization.

11988603331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 11988603331 in words is "eleven billion, nine hundred eighty-eight million, six hundred three thousand, three hundred thirty-one".