20232213277 has 2 divisors, whose sum is σ = 20232213278. Its totient is φ = 20232213276.

The previous prime is 20232213233. The next prime is 20232213299. The reversal of 20232213277 is 77231223202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13947846201 + 6284367076 = 118101^2 + 79274^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20232213277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20232213227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10116106638 + 10116106639.

It is an arithmetic number, because the mean of its divisors is an integer number (10116106639).

Almost surely, 2^20232213277 is an apocalyptic number.

It is an amenable number.

20232213277 is a deficient number, since it is larger than the sum of its proper divisors (1).

20232213277 is an equidigital number, since it uses as much as digits as its factorization.

20232213277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 31.

Adding to 20232213277 its reverse (77231223202), we get a palindrome (97463436479).

The spelling of 20232213277 in words is "twenty billion, two hundred thirty-two million, two hundred thirteen thousand, two hundred seventy-seven".