11551053401 has 4 divisors (see below), whose sum is σ = 12159003600. Its totient is φ = 10943103204.

The previous prime is 11551053377. The next prime is 11551053431. The reversal of 11551053401 is 10435015511.

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.

It is a cyclic number.

It is not a de Polignac number, because 11551053401 - 2⁶ = 11551053337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11551053431) 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, 303975071 + ... + 303975108.

It is an arithmetic number, because the mean of its divisors is an integer number (3039750900).

Almost surely, 2^11551053401 is an apocalyptic number.

It is an amenable number.

11551053401 is a deficient number, since it is larger than the sum of its proper divisors (607950199).

11551053401 is an equidigital number, since it uses as much as digits as its factorization.

11551053401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607950198.

The product of its (nonzero) digits is 1500, while the sum is 26.

Adding to 11551053401 its reverse (10435015511), we get a palindrome (21986068912).

The spelling of 11551053401 in words is "eleven billion, five hundred fifty-one million, fifty-three thousand, four hundred one".