20232001511 has 2 divisors, whose sum is σ = 20232001512. Its totient is φ = 20232001510.

The previous prime is 20232001453. The next prime is 20232001519. The reversal of 20232001511 is 11510023202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20232001511 - 2³⁴ = 3052132327 is a prime.

It is a super-2 number, since 2×20232001511² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20232001511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20232001519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10116000755 + 10116000756.

It is an arithmetic number, because the mean of its divisors is an integer number (10116000756).

Almost surely, 2^20232001511 is an apocalyptic number.

20232001511 is a deficient number, since it is larger than the sum of its proper divisors (1).

20232001511 is an equidigital number, since it uses as much as digits as its factorization.

20232001511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 20232001511 its reverse (11510023202), we get a palindrome (31742024713).

The spelling of 20232001511 in words is "twenty billion, two hundred thirty-two million, one thousand, five hundred eleven".