123010021867 has 2 divisors, whose sum is σ = 123010021868. Its totient is φ = 123010021866.

The previous prime is 123010021817. The next prime is 123010021891. The reversal of 123010021867 is 768120010321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123010021867 - 2¹¹ = 123010019819 is a prime.

It is not a weakly prime, because it can be changed into another prime (123010021817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61505010933 + 61505010934.

It is an arithmetic number, because the mean of its divisors is an integer number (61505010934).

Almost surely, 2^123010021867 is an apocalyptic number.

123010021867 is a deficient number, since it is larger than the sum of its proper divisors (1).

123010021867 is an equidigital number, since it uses as much as digits as its factorization.

123010021867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 123010021867 in words is "one hundred twenty-three billion, ten million, twenty-one thousand, eight hundred sixty-seven".