1242013223 has 8 divisors (see below), whose sum is σ = 1426235520. Its totient is φ = 1069676280.

The previous prime is 1242013187. The next prime is 1242013231. The reversal of 1242013223 is 3223102421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1242013223 - 2¹⁴ = 1241996839 is a prime.

It is a super-2 number, since 2×1242013223² = 3085193692213695458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1242013195 and 1242013204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242012223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2971115 + ... + 2971532.

It is an arithmetic number, because the mean of its divisors is an integer number (178279440).

Almost surely, 2^1242013223 is an apocalyptic number.

1242013223 is a deficient number, since it is larger than the sum of its proper divisors (184222297).

1242013223 is a wasteful number, since it uses less digits than its factorization.

1242013223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5942677.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1242013223 is about 35242.2079756646. The cubic root of 1242013223 is about 1074.9181759967.

Adding to 1242013223 its reverse (3223102421), we get a palindrome (4465115644).

The spelling of 1242013223 in words is "one billion, two hundred forty-two million, thirteen thousand, two hundred twenty-three".