1242223983 has 96 divisors (see below), whose sum is σ = 2551191552. Its totient is φ = 560563200.

The previous prime is 1242223979. The next prime is 1242223987. The reversal of 1242223983 is 3893222421.

1242223983 is a `hidden beast` number, since 1 + 242 + 22 + 398 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (1242223979) and next prime (1242223987).

It is not a de Polignac number, because 1242223983 - 2² = 1242223979 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242223987) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 149098 + ... + 157208.

It is an arithmetic number, because the mean of its divisors is an integer number (26574912).

Almost surely, 2^1242223983 is an apocalyptic number.

1242223983 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1242223983 is an abundant number, since it is smaller than the sum of its proper divisors (1308967569).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1242223983 is a wasteful number, since it uses less digits than its factorization.

1242223983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8165 (or 8162 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 1242223983 is about 35245.1980133464. The cubic root of 1242223983 is about 1074.9789743138.

The spelling of 1242223983 in words is "one billion, two hundred forty-two million, two hundred twenty-three thousand, nine hundred eighty-three".