2023137691 has 2 divisors, whose sum is σ = 2023137692. Its totient is φ = 2023137690.

The previous prime is 2023137673. The next prime is 2023137737. The reversal of 2023137691 is 1967313202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2023137691 - 2⁷ = 2023137563 is a prime.

It is a super-2 number, since 2×2023137691² = 8186172233489622962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2023137491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011568845 + 1011568846.

It is an arithmetic number, because the mean of its divisors is an integer number (1011568846).

Almost surely, 2^2023137691 is an apocalyptic number.

2023137691 is a deficient number, since it is larger than the sum of its proper divisors (1).

2023137691 is an equidigital number, since it uses as much as digits as its factorization.

2023137691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 2023137691 is about 44979.3029181200. The cubic root of 2023137691 is about 1264.7610438780.

The spelling of 2023137691 in words is "two billion, twenty-three million, one hundred thirty-seven thousand, six hundred ninety-one".