1242233631 has 16 divisors (see below), whose sum is σ = 1849989120. Its totient is φ = 823816440.

The previous prime is 1242233617. The next prime is 1242233633. The reversal of 1242233631 is 1363322421.

1242233631 is a `hidden beast` number, since 1 + 2 + 4 + 2 + 23 + 3 + 631 = 666.

It is not a de Polignac number, because 1242233631 - 2⁵ = 1242233599 is a prime.

It is a super-2 number, since 2×1242233631² = 3086288787974888322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1242233595 and 1242233604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242233633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115285 + ... + 125598.

It is an arithmetic number, because the mean of its divisors is an integer number (115624320).

Almost surely, 2^1242233631 is an apocalyptic number.

1242233631 is a deficient number, since it is larger than the sum of its proper divisors (607755489).

1242233631 is a wasteful number, since it uses less digits than its factorization.

1242233631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241083 (or 241077 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 1242233631 is about 35245.3348827898. The cubic root of 1242233631 is about 1074.9817573252.

The spelling of 1242233631 in words is "one billion, two hundred forty-two million, two hundred thirty-three thousand, six hundred thirty-one".