1242311627 has 4 divisors (see below), whose sum is σ = 1296325200. Its totient is φ = 1188298056.

The previous prime is 1242311621. The next prime is 1242311633. The reversal of 1242311627 is 7261132421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7261132421 = 44221 ⋅164201.

It is an interprime number because it is at equal distance from previous prime (1242311621) and next prime (1242311633).

It is a cyclic number.

It is not a de Polignac number, because 1242311627 - 2¹⁸ = 1242049483 is a prime.

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 1242311627.

It is not an unprimeable number, because it can be changed into a prime (1242311621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27006752 + ... + 27006797.

It is an arithmetic number, because the mean of its divisors is an integer number (324081300).

Almost surely, 2^1242311627 is an apocalyptic number.

1242311627 is a deficient number, since it is larger than the sum of its proper divisors (54013573).

1242311627 is an equidigital number, since it uses as much as digits as its factorization.

1242311627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54013572.

The product of its digits is 4032, while the sum is 29.

The square root of 1242311627 is about 35246.4413380982. The cubic root of 1242311627 is about 1075.0042551121.

The spelling of 1242311627 in words is "one billion, two hundred forty-two million, three hundred eleven thousand, six hundred twenty-seven".