1242111230 has 16 divisors (see below), whose sum is σ = 2242440720. Its totient is φ = 495368832.

The previous prime is 1242111229. The next prime is 1242111257. The reversal of 1242111230 is 321112421.

It is a super-2 number, since 2×1242111230² = 3085680615384225800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1242111199 and 1242111208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180920 + ... + 187659.

It is an arithmetic number, because the mean of its divisors is an integer number (140152545).

Almost surely, 2^1242111230 is an apocalyptic number.

1242111230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242111230 is a deficient number, since it is larger than the sum of its proper divisors (1000329490).

1242111230 is a wasteful number, since it uses less digits than its factorization.

1242111230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368923.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1242111230 is about 35243.5984258134. The cubic root of 1242111230 is about 1074.9464491082.

Adding to 1242111230 its reverse (321112421), we get a palindrome (1563223651).

The spelling of 1242111230 in words is "one billion, two hundred forty-two million, one hundred eleven thousand, two hundred thirty".