11355200399 has 4 divisors (see below), whose sum is σ = 11356830264. Its totient is φ = 11353570536.

The previous prime is 11355200393. The next prime is 11355200407. The reversal of 11355200399 is 99300255311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11355200399 is a prime.

It is a super-2 number, since 2×11355200399² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11355200393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 804437 + ... + 818430.

It is an arithmetic number, because the mean of its divisors is an integer number (2839207566).

Almost surely, 2^11355200399 is an apocalyptic number.

11355200399 is a deficient number, since it is larger than the sum of its proper divisors (1629865).

11355200399 is an equidigital number, since it uses as much as digits as its factorization.

11355200399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629864.

The product of its (nonzero) digits is 36450, while the sum is 38.

The spelling of 11355200399 in words is "eleven billion, three hundred fifty-five million, two hundred thousand, three hundred ninety-nine".