1230052013 has 4 divisors (see below), whose sum is σ = 1263296700. Its totient is φ = 1196807328.

The previous prime is 1230052009. The next prime is 1230052049. The reversal of 1230052013 is 3102500321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1059958249 + 170093764 = 32557^2 + 13042^2 .

It is not a de Polignac number, because 1230052013 - 2² = 1230052009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230051982 and 1230052000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230052003) 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, 16622288 + ... + 16622361.

It is an arithmetic number, because the mean of its divisors is an integer number (315824175).

Almost surely, 2^1230052013 is an apocalyptic number.

It is an amenable number.

1230052013 is a deficient number, since it is larger than the sum of its proper divisors (33244687).

1230052013 is an equidigital number, since it uses as much as digits as its factorization.

1230052013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33244686.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 1230052013 is about 35072.0973567307. The cubic root of 1230052013 is about 1071.4563721540.

Adding to 1230052013 its reverse (3102500321), we get a palindrome (4332552334).

The spelling of 1230052013 in words is "one billion, two hundred thirty million, fifty-two thousand, thirteen".