11432023121 has 4 divisors (see below), whose sum is σ = 11434485744. Its totient is φ = 11429560500.

The previous prime is 11432023117. The next prime is 11432023139. The reversal of 11432023121 is 12132023411.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12132023411 = 1361 ⋅8914051.

It is a cyclic number.

It is not a de Polignac number, because 11432023121 - 2² = 11432023117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11432023093 and 11432023102.

It is not an unprimeable number, because it can be changed into a prime (11432023921) 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, 1224335 + ... + 1233636.

It is an arithmetic number, because the mean of its divisors is an integer number (2858621436).

Almost surely, 2^11432023121 is an apocalyptic number.

It is an amenable number.

11432023121 is a deficient number, since it is larger than the sum of its proper divisors (2462623).

11432023121 is an equidigital number, since it uses as much as digits as its factorization.

11432023121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462622.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11432023121 its reverse (12132023411), we get a palindrome (23564046532).

The spelling of 11432023121 in words is "eleven billion, four hundred thirty-two million, twenty-three thousand, one hundred twenty-one".