123347131 has 2 divisors, whose sum is σ = 123347132. Its totient is φ = 123347130.

The previous prime is 123347083. The next prime is 123347141. The reversal of 123347131 is 131743321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123347131 - 2¹¹ = 123345083 is a prime.

It is a super-2 number, since 2×123347131² = 30429029451862322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123347096 and 123347105.

It is not a weakly prime, because it can be changed into another prime (123347141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61673565 + 61673566.

It is an arithmetic number, because the mean of its divisors is an integer number (61673566).

Almost surely, 2^123347131 is an apocalyptic number.

123347131 is a deficient number, since it is larger than the sum of its proper divisors (1).

123347131 is an equidigital number, since it uses as much as digits as its factorization.

123347131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 25.

The square root of 123347131 is about 11106.1753542793. The cubic root of 123347131 is about 497.7863889817.

The spelling of 123347131 in words is "one hundred twenty-three million, three hundred forty-seven thousand, one hundred thirty-one".