87723149023 has 2 divisors, whose sum is σ = 87723149024. Its totient is φ = 87723149022.

The previous prime is 87723149021. The next prime is 87723149051. The reversal of 87723149023 is 32094132778.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87723149023 - 2¹ = 87723149021 is a prime.

It is a super-2 number, since 2×87723149023² (a number of 23 digits) contains 22 as substring.

Together with 87723149021, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87723149021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43861574511 + 43861574512.

It is an arithmetic number, because the mean of its divisors is an integer number (43861574512).

Almost surely, 2^87723149023 is an apocalyptic number.

87723149023 is a deficient number, since it is larger than the sum of its proper divisors (1).

87723149023 is an equidigital number, since it uses as much as digits as its factorization.

87723149023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 87723149023 in words is "eighty-seven billion, seven hundred twenty-three million, one hundred forty-nine thousand, twenty-three".