123434130421311 has 24 divisors (see below), whose sum is σ = 173708053009920. Its totient is φ = 77953339460304.

The previous prime is 123434130421297. The next prime is 123434130421321. The reversal of 123434130421311 is 113124031434321.

It is a happy number.

It is not a de Polignac number, because 123434130421311 - 2¹⁰ = 123434130420287 is a prime.

It is a super-3 number, since 3×123434130421311³ (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 (123434130421321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13034610 + ... + 20414928.

It is an arithmetic number, because the mean of its divisors is an integer number (7237835542080).

Almost surely, 2^{123434130421311} is an apocalyptic number.

123434130421311 is a deficient number, since it is larger than the sum of its proper divisors (50273922588609).

123434130421311 is a wasteful number, since it uses less digits than its factorization.

123434130421311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7395803 (or 7395784 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

Adding to 123434130421311 its reverse (113124031434321), we get a palindrome (236558161855632).

The spelling of 123434130421311 in words is "one hundred twenty-three trillion, four hundred thirty-four billion, one hundred thirty million, four hundred twenty-one thousand, three hundred eleven".