121231312414311 has 16 divisors (see below), whose sum is σ = 178820066458368. Its totient is φ = 72438684326400.

The previous prime is 121231312414273. The next prime is 121231312414363. The reversal of 121231312414311 is 113414213132121.

It is not a de Polignac number, because 121231312414311 - 2⁴³ = 112435219392103 is a prime.

It is a super-2 number, since 2×121231312414311² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121231312414111) 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, 25870956346 + ... + 25870961031.

It is an arithmetic number, because the mean of its divisors is an integer number (11176254153648).

Almost surely, 2^{121231312414311} is an apocalyptic number.

121231312414311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121231312414311 is a deficient number, since it is larger than the sum of its proper divisors (57588754044057).

121231312414311 is a wasteful number, since it uses less digits than its factorization.

121231312414311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51741917462.

The product of its digits is 3456, while the sum is 30.

Adding to 121231312414311 its reverse (113414213132121), we get a palindrome (234645525546432).

The spelling of 121231312414311 in words is "one hundred twenty-one trillion, two hundred thirty-one billion, three hundred twelve million, four hundred fourteen thousand, three hundred eleven".