11124486244921 has 9 divisors (see below), whose sum is σ = 12940756056399. Its totient is φ = 9535253912184.

The previous prime is 11124486244913. The next prime is 11124486245003. The reversal of 11124486244921 is 12944268442111.

The square root of 11124486244921 is 3335339.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 9147751475625 + 1976734769296 = 3024525^2 + 1405964^2 .

It is not a de Polignac number, because 11124486244921 - 2³ = 11124486244913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11124486245921) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 23109135 + ... + 23585611.

Almost surely, 2^{11124486244921} is an apocalyptic number.

11124486244921 is the 3335339-th square number.

11124486244921 is the 1667670-th centered octagonal number.

It is an amenable number.

11124486244921 is a deficient number, since it is larger than the sum of its proper divisors (1816269811478).

11124486244921 is an frugal number, since it uses more digits than its factorization.

11124486244921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952968 (or 476484 counting only the distinct ones).

The product of its digits is 884736, while the sum is 49.

Multiplying 11124486244921 by its sum of digits (49), we get a square (545099826001129 = 23347373²).

11124486244921 divided by its sum of digits (49) gives a square (227030331529 = 476477²).

The spelling of 11124486244921 in words is "eleven trillion, one hundred twenty-four billion, four hundred eighty-six million, two hundred forty-four thousand, nine hundred twenty-one".