123352981 has 2 divisors, whose sum is σ = 123352982. Its totient is φ = 123352980.

The previous prime is 123352973. The next prime is 123352993. The reversal of 123352981 is 189253321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69989956 + 53363025 = 8366^2 + 7305^2 .

It is a cyclic number.

It is not a de Polignac number, because 123352981 - 2³ = 123352973 is a prime.

It is a super-2 number, since 2×123352981² = 30431915843172722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123352081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61676490 + 61676491.

It is an arithmetic number, because the mean of its divisors is an integer number (61676491).

Almost surely, 2^123352981 is an apocalyptic number.

It is an amenable number.

123352981 is a deficient number, since it is larger than the sum of its proper divisors (1).

123352981 is an equidigital number, since it uses as much as digits as its factorization.

123352981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 34.

The square root of 123352981 is about 11106.4387181490. The cubic root of 123352981 is about 497.7942583833.

The spelling of 123352981 in words is "one hundred twenty-three million, three hundred fifty-two thousand, nine hundred eighty-one".