2123331137 has 2 divisors, whose sum is σ = 2123331138. Its totient is φ = 2123331136.

The previous prime is 2123331121. The next prime is 2123331211. The reversal of 2123331137 is 7311333212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2095442176 + 27888961 = 45776^2 + 5281^2 .

It is a cyclic number.

It is not a de Polignac number, because 2123331137 - 2⁴ = 2123331121 is a prime.

It is not a weakly prime, because it can be changed into another prime (2123331437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061665568 + 1061665569.

It is an arithmetic number, because the mean of its divisors is an integer number (1061665569).

Almost surely, 2^2123331137 is an apocalyptic number.

It is an amenable number.

2123331137 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123331137 is an equidigital number, since it uses as much as digits as its factorization.

2123331137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 26.

The square root of 2123331137 is about 46079.6173703732. The cubic root of 2123331137 is about 1285.3041490124.

Adding to 2123331137 its reverse (7311333212), we get a palindrome (9434664349).

The spelling of 2123331137 in words is "two billion, one hundred twenty-three million, three hundred thirty-one thousand, one hundred thirty-seven".