113421031 has 2 divisors, whose sum is σ = 113421032. Its totient is φ = 113421030.

The previous prime is 113421019. The next prime is 113421043. The reversal of 113421031 is 130124311.

It is a balanced prime because it is at equal distance from previous prime (113421019) and next prime (113421043).

It is a cyclic number.

It is not a de Polignac number, because 113421031 - 2⁵ = 113420999 is a prime.

It is a super-2 number, since 2×113421031² = 25728660546205922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113420996 and 113421014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113421071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56710515 + 56710516.

It is an arithmetic number, because the mean of its divisors is an integer number (56710516).

Almost surely, 2^113421031 is an apocalyptic number.

113421031 is a deficient number, since it is larger than the sum of its proper divisors (1).

113421031 is an equidigital number, since it uses as much as digits as its factorization.

113421031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 113421031 is about 10649.9310326405. The cubic root of 113421031 is about 484.0585143721.

Adding to 113421031 its reverse (130124311), we get a palindrome (243545342).

The spelling of 113421031 in words is "one hundred thirteen million, four hundred twenty-one thousand, thirty-one".