123470439019 has 2 divisors, whose sum is σ = 123470439020. Its totient is φ = 123470439018.

The previous prime is 123470438981. The next prime is 123470439049. The reversal of 123470439019 is 910934074321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123470439019 is a prime.

It is a super-2 number, since 2×123470439019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123470439049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61735219509 + 61735219510.

It is an arithmetic number, because the mean of its divisors is an integer number (61735219510).

Almost surely, 2^123470439019 is an apocalyptic number.

123470439019 is a deficient number, since it is larger than the sum of its proper divisors (1).

123470439019 is an equidigital number, since it uses as much as digits as its factorization.

123470439019 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 43.

The spelling of 123470439019 in words is "one hundred twenty-three billion, four hundred seventy million, four hundred thirty-nine thousand, nineteen".