11172054763021 has 4 divisors (see below), whose sum is σ = 11431869990112. Its totient is φ = 10912239535932.

The previous prime is 11172054763019. The next prime is 11172054763027. The reversal of 11172054763021 is 12036745027111.

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 11172054763021 - 2¹ = 11172054763019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11172054763027) 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, 129907613481 + ... + 129907613566.

It is an arithmetic number, because the mean of its divisors is an integer number (2857967497528).

Almost surely, 2^{11172054763021} is an apocalyptic number.

It is an amenable number.

11172054763021 is a deficient number, since it is larger than the sum of its proper divisors (259815227091).

11172054763021 is an equidigital number, since it uses as much as digits as its factorization.

11172054763021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259815227090.

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 11172054763021 in words is "eleven trillion, one hundred seventy-two billion, fifty-four million, seven hundred sixty-three thousand, twenty-one".