1230861313 has 4 divisors (see below), whose sum is σ = 1342757808. Its totient is φ = 1118964820.

The previous prime is 1230861301. The next prime is 1230861323. The reversal of 1230861313 is 3131680321.

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.

It is a cyclic number.

It is not a de Polignac number, because 1230861313 - 2²⁵ = 1197306881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230861323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55948231 + ... + 55948252.

It is an arithmetic number, because the mean of its divisors is an integer number (335689452).

Almost surely, 2^1230861313 is an apocalyptic number.

It is an amenable number.

1230861313 is a deficient number, since it is larger than the sum of its proper divisors (111896495).

1230861313 is a wasteful number, since it uses less digits than its factorization.

1230861313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111896494.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1230861313 is about 35083.6331214428. The cubic root of 1230861313 is about 1071.6913051837.

The spelling of 1230861313 in words is "one billion, two hundred thirty million, eight hundred sixty-one thousand, three hundred thirteen".