113234212421 has 16 divisors (see below), whose sum is σ = 129244705920. Its totient is φ = 98200470720.

The previous prime is 113234212409. The next prime is 113234212433. The reversal of 113234212421 is 124212432311.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (113234212409) and next prime (113234212433).

It is not a de Polignac number, because 113234212421 - 2³⁴ = 96054343237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113234211421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 505586 + ... + 694323.

It is an arithmetic number, because the mean of its divisors is an integer number (8077794120).

Almost surely, 2^113234212421 is an apocalyptic number.

113234212421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

113234212421 is a deficient number, since it is larger than the sum of its proper divisors (16010493499).

113234212421 is a wasteful number, since it uses less digits than its factorization.

113234212421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200316.

The product of its digits is 2304, while the sum is 26.

Adding to 113234212421 its reverse (124212432311), we get a palindrome (237446644732).

The spelling of 113234212421 in words is "one hundred thirteen billion, two hundred thirty-four million, two hundred twelve thousand, four hundred twenty-one".