2312123553 has 12 divisors (see below), whose sum is σ = 3484940160. Its totient is φ = 1474397496.

The previous prime is 2312123551. The next prime is 2312123557. The reversal of 2312123553 is 3553212132.

It is a happy number.

It is not a de Polignac number, because 2312123553 - 2¹ = 2312123551 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2312123551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5584633 + ... + 5585046.

It is an arithmetic number, because the mean of its divisors is an integer number (290411680).

Almost surely, 2^2312123553 is an apocalyptic number.

2312123553 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2312123553 is a deficient number, since it is larger than the sum of its proper divisors (1172816607).

2312123553 is a wasteful number, since it uses less digits than its factorization.

2312123553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11169708 (or 11169705 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 2312123553 is about 48084.5458853466. The cubic root of 2312123553 is about 1322.3213577502.

Adding to 2312123553 its reverse (3553212132), we get a palindrome (5865335685).

The spelling of 2312123553 in words is "two billion, three hundred twelve million, one hundred twenty-three thousand, five hundred fifty-three".