20232011257 has 2 divisors, whose sum is σ = 20232011258. Its totient is φ = 20232011256.

The previous prime is 20232011209. The next prime is 20232011263. The reversal of 20232011257 is 75211023202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14706170361 + 5525840896 = 121269^2 + 74336^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20232011257 is a prime.

It is not a weakly prime, because it can be changed into another prime (20232017257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10116005628 + 10116005629.

It is an arithmetic number, because the mean of its divisors is an integer number (10116005629).

Almost surely, 2^20232011257 is an apocalyptic number.

It is an amenable number.

20232011257 is a deficient number, since it is larger than the sum of its proper divisors (1).

20232011257 is an equidigital number, since it uses as much as digits as its factorization.

20232011257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 25.

Adding to 20232011257 its reverse (75211023202), we get a palindrome (95443034459).

The spelling of 20232011257 in words is "twenty billion, two hundred thirty-two million, eleven thousand, two hundred fifty-seven".