121013343431223 has 32 divisors (see below), whose sum is σ = 170241909981696. Its totient is φ = 76309623717888.

The previous prime is 121013343431203. The next prime is 121013343431243. The reversal of 121013343431223 is 322134343310121.

It is an interprime number because it is at equal distance from previous prime (121013343431203) and next prime (121013343431243).

It is not a de Polignac number, because 121013343431223 - 2¹⁴ = 121013343414839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121013343431203) 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, 717040 + ... + 15573722.

It is an arithmetic number, because the mean of its divisors is an integer number (5320059686928).

Almost surely, 2^{121013343431223} is an apocalyptic number.

121013343431223 is a deficient number, since it is larger than the sum of its proper divisors (49228566550473).

121013343431223 is a wasteful number, since it uses less digits than its factorization.

121013343431223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14858023.

The product of its (nonzero) digits is 31104, while the sum is 33.

Adding to 121013343431223 its reverse (322134343310121), we get a palindrome (443147686741344).

The spelling of 121013343431223 in words is "one hundred twenty-one trillion, thirteen billion, three hundred forty-three million, four hundred thirty-one thousand, two hundred twenty-three".