1242313011 has 8 divisors (see below), whose sum is σ = 1840463760. Its totient is φ = 828208656.

The previous prime is 1242313001. The next prime is 1242313019. The reversal of 1242313011 is 1103132421.

It is not a de Polignac number, because 1242313011 - 2¹¹ = 1242310963 is a prime.

It is a super-2 number, since 2×1242313011² = 3086683234599772242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1242313019) 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, 23005770 + ... + 23005823.

It is an arithmetic number, because the mean of its divisors is an integer number (230057970).

Almost surely, 2^1242313011 is an apocalyptic number.

1242313011 is a deficient number, since it is larger than the sum of its proper divisors (598150749).

1242313011 is an equidigital number, since it uses as much as digits as its factorization.

1242313011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46011602 (or 46011596 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1242313011 is about 35246.4609712805. The cubic root of 1242313011 is about 1075.0046543155.

Adding to 1242313011 its reverse (1103132421), we get a palindrome (2345445432).

The spelling of 1242313011 in words is "one billion, two hundred forty-two million, three hundred thirteen thousand, eleven".