121313403231223 has 8 divisors (see below), whose sum is σ = 140073207855392. Its totient is φ = 102910928219136.

The previous prime is 121313403231211. The next prime is 121313403231239. The reversal of 121313403231223 is 322132304313121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121313403231223 - 2²⁹ = 121312866360311 is a prime.

It is a super-3 number, since 3×121313403231223³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121313403231623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89332402290 + ... + 89332403647.

It is an arithmetic number, because the mean of its divisors is an integer number (17509150981924).

Almost surely, 2^{121313403231223} is an apocalyptic number.

121313403231223 is a deficient number, since it is larger than the sum of its proper divisors (18759804624169).

121313403231223 is an equidigital number, since it uses as much as digits as its factorization.

121313403231223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178664806041.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 121313403231223 its reverse (322132304313121), we get a palindrome (443445707544344).

The spelling of 121313403231223 in words is "one hundred twenty-one trillion, three hundred thirteen billion, four hundred three million, two hundred thirty-one thousand, two hundred twenty-three".