130113421 has 4 divisors (see below), whose sum is σ = 131063292. Its totient is φ = 129163552.

The previous prime is 130113419. The next prime is 130113433. The reversal of 130113421 is 124311031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124311031 = 13 ⋅9562387.

It can be written as a sum of positive squares in 2 ways, for example, as 54597321 + 75516100 = 7389^2 + 8690^2 .

It is a cyclic number.

It is not a de Polignac number, because 130113421 - 2¹ = 130113419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130113395 and 130113404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130116421) 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, 474730 + ... + 475003.

It is an arithmetic number, because the mean of its divisors is an integer number (32765823).

Almost surely, 2^130113421 is an apocalyptic number.

It is an amenable number.

130113421 is a deficient number, since it is larger than the sum of its proper divisors (949871).

130113421 is an equidigital number, since it uses as much as digits as its factorization.

130113421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949870.

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

The square root of 130113421 is about 11406.7270064642. The cubic root of 130113421 is about 506.7269841529.

Adding to 130113421 its reverse (124311031), we get a palindrome (254424452).

The spelling of 130113421 in words is "one hundred thirty million, one hundred thirteen thousand, four hundred twenty-one".