20232440087 has 2 divisors, whose sum is σ = 20232440088. Its totient is φ = 20232440086.

The previous prime is 20232440077. The next prime is 20232440119. The reversal of 20232440087 is 78004423202.

It is an a-pointer prime, because the next prime (20232440119) can be obtained adding 20232440087 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20232440087 - 2²² = 20228245783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20232440077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10116220043 + 10116220044.

It is an arithmetic number, because the mean of its divisors is an integer number (10116220044).

Almost surely, 2^20232440087 is an apocalyptic number.

20232440087 is a deficient number, since it is larger than the sum of its proper divisors (1).

20232440087 is an equidigital number, since it uses as much as digits as its factorization.

20232440087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 32.

Adding to 20232440087 its reverse (78004423202), we get a palindrome (98236863289).

The spelling of 20232440087 in words is "twenty billion, two hundred thirty-two million, four hundred forty thousand, eighty-seven".