123280983 has 24 divisors (see below), whose sum is σ = 204186528. Its totient is φ = 70212672.

The previous prime is 123280981. The next prime is 123281027. The reversal of 123280983 is 389082321.

It is a happy number.

It is not a de Polignac number, because 123280983 - 2¹ = 123280981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123280981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16885 + ... + 23057.

It is an arithmetic number, because the mean of its divisors is an integer number (8507772).

Almost surely, 2^123280983 is an apocalyptic number.

123280983 is a deficient number, since it is larger than the sum of its proper divisors (80905545).

123280983 is a wasteful number, since it uses less digits than its factorization.

123280983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6503 (or 6500 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 123280983 is about 11103.1969720437. The cubic root of 123280983 is about 497.6973895818.

It can be divided in two parts, 1232 and 80983, that added together give a triangular number (82215 = T₄₀₅).

The spelling of 123280983 in words is "one hundred twenty-three million, two hundred eighty thousand, nine hundred eighty-three".