11903246405 has 8 divisors (see below), whose sum is σ = 15124124952. Its totient is φ = 8962444288.

The previous prime is 11903246393. The next prime is 11903246413. The reversal of 11903246405 is 50464230911.

It is a Cunningham number, because it is equal to 109102²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 4285273444 + 7617972961 = 65462^2 + 87281^2 .

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 11903246405 - 2⁴ = 11903246389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70019012 + ... + 70019181.

It is an arithmetic number, because the mean of its divisors is an integer number (1890515619).

Almost surely, 2^11903246405 is an apocalyptic number.

It is an amenable number.

11903246405 is a deficient number, since it is larger than the sum of its proper divisors (3220878547).

11903246405 is a wasteful number, since it uses less digits than its factorization.

11903246405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140038215.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 11903246405 in words is "eleven billion, nine hundred three million, two hundred forty-six thousand, four hundred five".