2133312123 has 32 divisors (see below), whose sum is σ = 3145443840. Its totient is φ = 1281378560.

The previous prime is 2133312121. The next prime is 2133312127. The reversal of 2133312123 is 3212133312.

It is a cyclic number.

It is not a de Polignac number, because 2133312123 - 2¹ = 2133312121 is a prime.

It is a super-2 number, since 2×2133312123² = 9102041228277534258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2133312123.

It is not an unprimeable number, because it can be changed into a prime (2133312121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69040 + ... + 95042.

It is an arithmetic number, because the mean of its divisors is an integer number (98295120).

Almost surely, 2^2133312123 is an apocalyptic number.

2133312123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2133312123 is a deficient number, since it is larger than the sum of its proper divisors (1012131717).

2133312123 is a wasteful number, since it uses less digits than its factorization.

2133312123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26099.

The product of its digits is 648, while the sum is 21.

The square root of 2133312123 is about 46187.7919260057. The cubic root of 2133312123 is about 1287.3149131368.

Adding to 2133312123 its reverse (3212133312), we get a palindrome (5345445435).

The spelling of 2133312123 in words is "two billion, one hundred thirty-three million, three hundred twelve thousand, one hundred twenty-three".