20233220087 has 2 divisors, whose sum is σ = 20233220088. Its totient is φ = 20233220086.

The previous prime is 20233219997. The next prime is 20233220149. The reversal of 20233220087 is 78002233202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20233220087 - 2¹² = 20233215991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20233220687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10116610043 + 10116610044.

It is an arithmetic number, because the mean of its divisors is an integer number (10116610044).

Almost surely, 2^20233220087 is an apocalyptic number.

20233220087 is a deficient number, since it is larger than the sum of its proper divisors (1).

20233220087 is an equidigital number, since it uses as much as digits as its factorization.

20233220087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 29.

Adding to 20233220087 its reverse (78002233202), we get a palindrome (98235453289).

The spelling of 20233220087 in words is "twenty billion, two hundred thirty-three million, two hundred twenty thousand, eighty-seven".