11432240121 has 32 divisors (see below), whose sum is σ = 16240283136. Its totient is φ = 7128576000.

The previous prime is 11432240111. The next prime is 11432240143. The reversal of 11432240121 is 12104223411.

It is not a de Polignac number, because 11432240121 - 2²⁵ = 11398685689 is a prime.

It is a super-2 number, since 2×11432240121² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11432240111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11196591 + ... + 11197611.

It is an arithmetic number, because the mean of its divisors is an integer number (507508848).

Almost surely, 2^11432240121 is an apocalyptic number.

It is an amenable number.

11432240121 is a deficient number, since it is larger than the sum of its proper divisors (4808043015).

11432240121 is a wasteful number, since it uses less digits than its factorization.

11432240121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 11432240121 its reverse (12104223411), we get a palindrome (23536463532).

The spelling of 11432240121 in words is "eleven billion, four hundred thirty-two million, two hundred forty thousand, one hundred twenty-one".