11200521401 has 4 divisors (see below), whose sum is σ = 11202694272. Its totient is φ = 11198348532.

The previous prime is 11200521379. The next prime is 11200521427. The reversal of 11200521401 is 10412500211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10412500211 = 97 ⋅107345363.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11200521401 is a prime.

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 11200521401.

It is not an unprimeable number, because it can be changed into a prime (11200521461) 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, 1078685 + ... + 1089018.

It is an arithmetic number, because the mean of its divisors is an integer number (2800673568).

Almost surely, 2^11200521401 is an apocalyptic number.

It is an amenable number.

11200521401 is a deficient number, since it is larger than the sum of its proper divisors (2172871).

11200521401 is an equidigital number, since it uses as much as digits as its factorization.

11200521401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172870.

The product of its (nonzero) digits is 80, while the sum is 17.

The spelling of 11200521401 in words is "eleven billion, two hundred million, five hundred twenty-one thousand, four hundred one".