113434342421 has 8 divisors (see below), whose sum is σ = 117350040600. Its totient is φ = 109518922240.

The previous prime is 113434342391. The next prime is 113434342423. The reversal of 113434342421 is 124243434311.

It can be written as a sum of positive squares in 4 ways, for example, as 22659280900 + 90775061521 = 150530^2 + 301289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-113434342421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113434342423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1087181 + ... + 1186941.

It is an arithmetic number, because the mean of its divisors is an integer number (14668755075).

Almost surely, 2^113434342421 is an apocalyptic number.

It is an amenable number.

113434342421 is a deficient number, since it is larger than the sum of its proper divisors (3915698179).

113434342421 is an equidigital number, since it uses as much as digits as its factorization.

113434342421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138999.

The product of its digits is 27648, while the sum is 32.

Adding to 113434342421 its reverse (124243434311), we get a palindrome (237677776732).

The spelling of 113434342421 in words is "one hundred thirteen billion, four hundred thirty-four million, three hundred forty-two thousand, four hundred twenty-one".