121231312414273 has 2 divisors, whose sum is σ = 121231312414274. Its totient is φ = 121231312414272.

The previous prime is 121231312414253. The next prime is 121231312414363. The reversal of 121231312414273 is 372414213132121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117610923350449 + 3620389063824 = 10844857^2 + 1902732^2 .

It is a cyclic number.

It is not a de Polignac number, because 121231312414273 - 2³³ = 121222722479681 is a prime.

It is a super-2 number, since 2×121231312414273² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121231312414253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60615656207136 + 60615656207137.

It is an arithmetic number, because the mean of its divisors is an integer number (60615656207137).

Almost surely, 2^{121231312414273} is an apocalyptic number.

It is an amenable number.

121231312414273 is a deficient number, since it is larger than the sum of its proper divisors (1).

121231312414273 is an equidigital number, since it uses as much as digits as its factorization.

121231312414273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 37.

Adding to 121231312414273 its reverse (372414213132121), we get a palindrome (493645525546394).

The spelling of 121231312414273 in words is "one hundred twenty-one trillion, two hundred thirty-one billion, three hundred twelve million, four hundred fourteen thousand, two hundred seventy-three".