123076821047 has 2 divisors, whose sum is σ = 123076821048. Its totient is φ = 123076821046.

The previous prime is 123076820969. The next prime is 123076821071. The reversal of 123076821047 is 740128670321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123076821047 - 2¹⁶ = 123076755511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123076820995 and 123076821013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123076829047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61538410523 + 61538410524.

It is an arithmetic number, because the mean of its divisors is an integer number (61538410524).

Almost surely, 2^123076821047 is an apocalyptic number.

123076821047 is a deficient number, since it is larger than the sum of its proper divisors (1).

123076821047 is an equidigital number, since it uses as much as digits as its factorization.

123076821047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 41.

The spelling of 123076821047 in words is "one hundred twenty-three billion, seventy-six million, eight hundred twenty-one thousand, forty-seven".