1242020230 has 48 divisors (see below), whose sum is σ = 2481926832. Its totient is φ = 447128000.

The previous prime is 1242020203. The next prime is 1242020233. The reversal of 1242020230 is 320202421.

It is a super-2 number, since 2×1242020230² = 3085228503458505800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242020233) 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, 117129 + ... + 127291.

It is an arithmetic number, because the mean of its divisors is an integer number (51706809).

Almost surely, 2^1242020230 is an apocalyptic number.

1242020230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242020230 is a deficient number, since it is larger than the sum of its proper divisors (1239906602).

1242020230 is a wasteful number, since it uses less digits than its factorization.

1242020230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10293 (or 10282 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1242020230 is about 35242.3073875704. The cubic root of 1242020230 is about 1074.9201974292.

Adding to 1242020230 its reverse (320202421), we get a palindrome (1562222651).

The spelling of 1242020230 in words is "one billion, two hundred forty-two million, twenty thousand, two hundred thirty".