11345904213 has 16 divisors (see below), whose sum is σ = 17314039296. Its totient is φ = 6473982960.

The previous prime is 11345904187. The next prime is 11345904221. The reversal of 11345904213 is 31240954311.

It is not a de Polignac number, because 11345904213 - 2⁵ = 11345904181 is a prime.

It is a super-2 number, since 2×11345904213² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11345904223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376431 + ... + 405452.

It is an arithmetic number, because the mean of its divisors is an integer number (1082127456).

Almost surely, 2^11345904213 is an apocalyptic number.

It is an amenable number.

11345904213 is a deficient number, since it is larger than the sum of its proper divisors (5968135083).

11345904213 is an equidigital number, since it uses as much as digits as its factorization.

11345904213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782584.

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 11345904213 in words is "eleven billion, three hundred forty-five million, nine hundred four thousand, two hundred thirteen".