121030131001223 has 16 divisors (see below), whose sum is σ = 125011656646656. Its totient is φ = 117053453704320.

The previous prime is 121030131001189. The next prime is 121030131001229. The reversal of 121030131001223 is 322100131030121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121030131001223 - 2²⁸ = 121029862565767 is a prime.

It is a super-2 number, since 2×121030131001223² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121030131001195 and 121030131001204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121030131001229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491483615 + ... + 491729807.

It is an arithmetic number, because the mean of its divisors is an integer number (7813228540416).

Almost surely, 2^{121030131001223} is an apocalyptic number.

121030131001223 is a deficient number, since it is larger than the sum of its proper divisors (3981525645433).

121030131001223 is a wasteful number, since it uses less digits than its factorization.

121030131001223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255974.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121030131001223 its reverse (322100131030121), we get a palindrome (443130262031344).

The spelling of 121030131001223 in words is "one hundred twenty-one trillion, thirty billion, one hundred thirty-one million, one thousand, two hundred twenty-three".