11392557121 has 16 divisors (see below), whose sum is σ = 12618419328. Its totient is φ = 10198742400.

The previous prime is 11392557107. The next prime is 11392557131. The reversal of 11392557121 is 12175529311.

It is not a de Polignac number, because 11392557121 - 2¹¹ = 11392555073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11392557101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 676621 + ... + 693253.

It is an arithmetic number, because the mean of its divisors is an integer number (788651208).

Almost surely, 2^11392557121 is an apocalyptic number.

11392557121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11392557121 is a deficient number, since it is larger than the sum of its proper divisors (1225862207).

11392557121 is a wasteful number, since it uses less digits than its factorization.

11392557121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17592.

The product of its digits is 18900, while the sum is 37.

The spelling of 11392557121 in words is "eleven billion, three hundred ninety-two million, five hundred fifty-seven thousand, one hundred twenty-one".