11903470381 has 8 divisors (see below), whose sum is σ = 12992544864. Its totient is φ = 10815552720.

The previous prime is 11903470373. The next prime is 11903470391. The reversal of 11903470381 is 18307430911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11903470381 - 2³ = 11903470373 is a prime.

It is a super-2 number, since 2×11903470381² (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 11903470381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11903470391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267615 + ... + 308908.

It is an arithmetic number, because the mean of its divisors is an integer number (1624068108).

Almost surely, 2^11903470381 is an apocalyptic number.

11903470381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11903470381 is a deficient number, since it is larger than the sum of its proper divisors (1089074483).

11903470381 is a wasteful number, since it uses less digits than its factorization.

11903470381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578411.

The product of its (nonzero) digits is 18144, while the sum is 37.

It can be divided in two parts, 11903 and 470381, that added together give a palindrome (482284).

The spelling of 11903470381 in words is "eleven billion, nine hundred three million, four hundred seventy thousand, three hundred eighty-one".