11903181612 has 48 divisors (see below), whose sum is σ = 31817667840. Its totient is φ = 3392782272.

The previous prime is 11903181593. The next prime is 11903181629. The reversal of 11903181612 is 21618130911.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133903 + ... + 204294.

It is an arithmetic number, because the mean of its divisors is an integer number (662868080).

Almost surely, 2^11903181612 is an apocalyptic number.

11903181612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11903181612 is an abundant number, since it is smaller than the sum of its proper divisors (19914486228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11903181612 is a wasteful number, since it uses less digits than its factorization.

11903181612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338630 (or 338628 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 33.

The spelling of 11903181612 in words is "eleven billion, nine hundred three million, one hundred eighty-one thousand, six hundred twelve".