122023540987 has 2 divisors, whose sum is σ = 122023540988. Its totient is φ = 122023540986.

The previous prime is 122023540957. The next prime is 122023541009. The reversal of 122023540987 is 789045320221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122023540987 - 2¹¹ = 122023538939 is a prime.

It is not a weakly prime, because it can be changed into another prime (122023540957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61011770493 + 61011770494.

It is an arithmetic number, because the mean of its divisors is an integer number (61011770494).

Almost surely, 2^122023540987 is an apocalyptic number.

122023540987 is a deficient number, since it is larger than the sum of its proper divisors (1).

122023540987 is an equidigital number, since it uses as much as digits as its factorization.

122023540987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 122023540987 in words is "one hundred twenty-two billion, twenty-three million, five hundred forty thousand, nine hundred eighty-seven".