113542043431 has 4 divisors (see below), whose sum is σ = 113549402664. Its totient is φ = 113534684200.

The previous prime is 113542043429. The next prime is 113542043467. The reversal of 113542043431 is 134340245311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113542043431 - 2¹ = 113542043429 is a prime.

It is a super-2 number, since 2×113542043431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113542043393 and 113542043402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113542040431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3656425 + ... + 3687346.

It is an arithmetic number, because the mean of its divisors is an integer number (28387350666).

Almost surely, 2^113542043431 is an apocalyptic number.

113542043431 is a deficient number, since it is larger than the sum of its proper divisors (7359233).

113542043431 is an equidigital number, since it uses as much as digits as its factorization.

113542043431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7359232.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 113542043431 its reverse (134340245311), we get a palindrome (247882288742).

The spelling of 113542043431 in words is "one hundred thirteen billion, five hundred forty-two million, forty-three thousand, four hundred thirty-one".