121323233131 has 4 divisors (see below), whose sum is σ = 121488749872. Its totient is φ = 121157716392.

The previous prime is 121323233021. The next prime is 121323233153. The reversal of 121323233131 is 131332323121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131332323121 = 1279 ⋅102683599.

It is a cyclic number.

It is not a de Polignac number, because 121323233131 - 2¹⁵ = 121323200363 is a prime.

It is a super-2 number, since 2×121323233131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121323233096 and 121323233105.

It is not an unprimeable number, because it can be changed into a prime (121323233431) 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, 82757271 + ... + 82758736.

It is an arithmetic number, because the mean of its divisors is an integer number (30372187468).

Almost surely, 2^121323233131 is an apocalyptic number.

121323233131 is a deficient number, since it is larger than the sum of its proper divisors (165516741).

121323233131 is an equidigital number, since it uses as much as digits as its factorization.

121323233131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165516740.

The product of its digits is 1944, while the sum is 25.

Adding to 121323233131 its reverse (131332323121), we get a palindrome (252655556252).

The spelling of 121323233131 in words is "one hundred twenty-one billion, three hundred twenty-three million, two hundred thirty-three thousand, one hundred thirty-one".