2152142123 has 2 divisors, whose sum is σ = 2152142124. Its totient is φ = 2152142122.

The previous prime is 2152142119. The next prime is 2152142207. The reversal of 2152142123 is 3212412512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2152142123 - 2² = 2152142119 is a prime.

It is not a weakly prime, because it can be changed into another prime (2152142023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1076071061 + 1076071062.

It is an arithmetic number, because the mean of its divisors is an integer number (1076071062).

Almost surely, 2^2152142123 is an apocalyptic number.

2152142123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2152142123 is an equidigital number, since it uses as much as digits as its factorization.

2152142123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 23.

The square root of 2152142123 is about 46391.1858330869. The cubic root of 2152142123 is about 1291.0913831454.

Adding to 2152142123 its reverse (3212412512), we get a palindrome (5364554635).

The spelling of 2152142123 in words is "two billion, one hundred fifty-two million, one hundred forty-two thousand, one hundred twenty-three".