11234140121 has 4 divisors (see below), whose sum is σ = 11236223232. Its totient is φ = 11232057012.

The previous prime is 11234140117. The next prime is 11234140123. The reversal of 11234140121 is 12104143211.

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: 12104143211 = 19 ⋅637060169.

It is a cyclic number.

It is not a de Polignac number, because 11234140121 - 2² = 11234140117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11234140093 and 11234140102.

It is not an unprimeable number, because it can be changed into a prime (11234140123) 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, 1033445 + ... + 1044258.

It is an arithmetic number, because the mean of its divisors is an integer number (2809055808).

Almost surely, 2^11234140121 is an apocalyptic number.

It is an amenable number.

11234140121 is a deficient number, since it is larger than the sum of its proper divisors (2083111).

11234140121 is an equidigital number, since it uses as much as digits as its factorization.

11234140121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083110.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 11234140121 its reverse (12104143211), we get a palindrome (23338283332).

The spelling of 11234140121 in words is "eleven billion, two hundred thirty-four million, one hundred forty thousand, one hundred twenty-one".