2321012145 has 16 divisors (see below), whose sum is σ = 3714262272. Its totient is φ = 1237658880.

The previous prime is 2321012137. The next prime is 2321012201. The reversal of 2321012145 is 5412101232.

It is not a de Polignac number, because 2321012145 - 2³ = 2321012137 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117289 + ... + 135641.

It is an arithmetic number, because the mean of its divisors is an integer number (232141392).

Almost surely, 2^2321012145 is an apocalyptic number.

It is an amenable number.

2321012145 is a deficient number, since it is larger than the sum of its proper divisors (1393250127).

2321012145 is a wasteful number, since it uses less digits than its factorization.

2321012145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26792.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2321012145 is about 48176.8839278756. The cubic root of 2321012145 is about 1324.0136758399.

Adding to 2321012145 its reverse (5412101232), we get a palindrome (7733113377).

The spelling of 2321012145 in words is "two billion, three hundred twenty-one million, twelve thousand, one hundred forty-five".