1242011015 has 8 divisors (see below), whose sum is σ = 1703329440. Its totient is φ = 851664672.

The previous prime is 1242011003. The next prime is 1242011021. The reversal of 1242011015 is 5101102421.

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 1242011015 - 2⁶ = 1242010951 is a prime.

It is a super-2 number, since 2×1242011015² = 3085182722762660450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1242010984 and 1242011002.

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, 17742980 + ... + 17743049.

It is an arithmetic number, because the mean of its divisors is an integer number (212916180).

Almost surely, 2^1242011015 is an apocalyptic number.

1242011015 is a deficient number, since it is larger than the sum of its proper divisors (461318425).

1242011015 is an equidigital number, since it uses as much as digits as its factorization.

1242011015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35486041.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1242011015 is about 35242.1766495771. The cubic root of 1242011015 is about 1074.9175390146.

Adding to 1242011015 its reverse (5101102421), we get a palindrome (6343113436).

The spelling of 1242011015 in words is "one billion, two hundred forty-two million, eleven thousand, fifteen".