1230213113 has 4 divisors (see below), whose sum is σ = 1230285648. Its totient is φ = 1230140580.

The previous prime is 1230213079. The next prime is 1230213137. The reversal of 1230213113 is 3113120321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3113120321 = 43 ⋅72398147.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230213113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230213091 and 1230213100.

It is not an unprimeable number, because it can be changed into a prime (1230213013) 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, 4298 + ... + 49788.

It is an arithmetic number, because the mean of its divisors is an integer number (307571412).

Almost surely, 2^1230213113 is an apocalyptic number.

It is an amenable number.

1230213113 is a deficient number, since it is larger than the sum of its proper divisors (72535).

1230213113 is an equidigital number, since it uses as much as digits as its factorization.

1230213113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72534.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1230213113 is about 35074.3939790839. The cubic root of 1230213113 is about 1071.5031463512.

Adding to 1230213113 its reverse (3113120321), we get a palindrome (4343333434).

The spelling of 1230213113 in words is "one billion, two hundred thirty million, two hundred thirteen thousand, one hundred thirteen".