1242001063 has 8 divisors (see below), whose sum is σ = 1310411520. Its totient is φ = 1173894840.

The previous prime is 1242001051. The next prime is 1242001091. The reversal of 1242001063 is 3601002421.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1242001063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1242001063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242004063) 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, 67645 + ... + 84022.

It is an arithmetic number, because the mean of its divisors is an integer number (163801440).

Almost surely, 2^1242001063 is an apocalyptic number.

1242001063 is a deficient number, since it is larger than the sum of its proper divisors (68410457).

1242001063 is a wasteful number, since it uses less digits than its factorization.

1242001063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152117.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1242001063 is about 35242.0354548372. The cubic root of 1242001063 is about 1074.9146679697.

Adding to 1242001063 its reverse (3601002421), we get a palindrome (4843003484).

The spelling of 1242001063 in words is "one billion, two hundred forty-two million, one thousand, sixty-three".