2313211545 has 48 divisors (see below), whose sum is σ = 4208405760. Its totient is φ = 1173161088.

The previous prime is 2313211543. The next prime is 2313211559. The reversal of 2313211545 is 5451123132.

It is not a de Polignac number, because 2313211545 - 2¹ = 2313211543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2313211543) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 172596 + ... + 185514.

It is an arithmetic number, because the mean of its divisors is an integer number (87675120).

Almost surely, 2^2313211545 is an apocalyptic number.

It is an amenable number.

2313211545 is a deficient number, since it is larger than the sum of its proper divisors (1895194215).

2313211545 is a wasteful number, since it uses less digits than its factorization.

2313211545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13126 (or 13123 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 2313211545 is about 48095.8578777840. The cubic root of 2313211545 is about 1322.5287355746.

Adding to 2313211545 its reverse (5451123132), we get a palindrome (7764334677).

The spelling of 2313211545 in words is "two billion, three hundred thirteen million, two hundred eleven thousand, five hundred forty-five".