123203015147 has 2 divisors, whose sum is σ = 123203015148. Its totient is φ = 123203015146.

The previous prime is 123203015101. The next prime is 123203015219. The reversal of 123203015147 is 741510302321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123203015147 - 2¹² = 123203011051 is a prime.

It is a super-2 number, since 2×123203015147² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123203615147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61601507573 + 61601507574.

It is an arithmetic number, because the mean of its divisors is an integer number (61601507574).

Almost surely, 2^123203015147 is an apocalyptic number.

123203015147 is a deficient number, since it is larger than the sum of its proper divisors (1).

123203015147 is an equidigital number, since it uses as much as digits as its factorization.

123203015147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

Adding to 123203015147 its reverse (741510302321), we get a palindrome (864713317468).

The spelling of 123203015147 in words is "one hundred twenty-three billion, two hundred three million, fifteen thousand, one hundred forty-seven".