123087913219 has 2 divisors, whose sum is σ = 123087913220. Its totient is φ = 123087913218.

The previous prime is 123087913183. The next prime is 123087913253. The reversal of 123087913219 is 912319780321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123087913219 - 2²¹ = 123085816067 is a prime.

It is a super-2 number, since 2×123087913219² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123087913259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61543956609 + 61543956610.

It is an arithmetic number, because the mean of its divisors is an integer number (61543956610).

Almost surely, 2^123087913219 is an apocalyptic number.

123087913219 is a deficient number, since it is larger than the sum of its proper divisors (1).

123087913219 is an equidigital number, since it uses as much as digits as its factorization.

123087913219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 46.

The spelling of 123087913219 in words is "one hundred twenty-three billion, eighty-seven million, nine hundred thirteen thousand, two hundred nineteen".