11981230419 has 16 divisors (see below), whose sum is σ = 16112775168. Its totient is φ = 7918680672.

The previous prime is 11981230361. The next prime is 11981230423. The reversal of 11981230419 is 91403218911.

It is not a de Polignac number, because 11981230419 - 2²⁴ = 11964453203 is a prime.

It is a super-2 number, since 2×11981230419² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11981230489) 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, 532669 + ... + 554705.

It is an arithmetic number, because the mean of its divisors is an integer number (1007048448).

Almost surely, 2^11981230419 is an apocalyptic number.

11981230419 is a deficient number, since it is larger than the sum of its proper divisors (4131544749).

11981230419 is a wasteful number, since it uses less digits than its factorization.

11981230419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23594.

The product of its (nonzero) digits is 15552, while the sum is 39.

The spelling of 11981230419 in words is "eleven billion, nine hundred eighty-one million, two hundred thirty thousand, four hundred nineteen".