1242132013 has 8 divisors (see below), whose sum is σ = 1345785408. Its totient is φ = 1141877184.

The previous prime is 1242131999. The next prime is 1242132053. The reversal of 1242132013 is 3102312421.

It is a happy number.

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-1242132013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242132053) 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, 848881 + ... + 850342.

It is an arithmetic number, because the mean of its divisors is an integer number (168223176).

Almost surely, 2^1242132013 is an apocalyptic number.

It is an amenable number.

1242132013 is a deficient number, since it is larger than the sum of its proper divisors (103653395).

1242132013 is a wasteful number, since it uses less digits than its factorization.

1242132013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699283.

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

The square root of 1242132013 is about 35243.8932724522. The cubic root of 1242132013 is about 1074.9524444079.

Adding to 1242132013 its reverse (3102312421), we get a palindrome (4344444434).

The spelling of 1242132013 in words is "one billion, two hundred forty-two million, one hundred thirty-two thousand, thirteen".