1242423220232 has 48 divisors (see below), whose sum is σ = 2419935882000. Its totient is φ = 597977392320.

The previous prime is 1242423220201. The next prime is 1242423220237. The reversal of 1242423220232 is 2320223242421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 1242423220195 and 1242423220204.

It is not an unprimeable number, because it can be changed into a prime (1242423220237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1948019 + ... + 2505917.

It is an arithmetic number, because the mean of its divisors is an integer number (50415330875).

Almost surely, 2^{1242423220232} is an apocalyptic number.

It is an amenable number.

1242423220232 is a deficient number, since it is larger than the sum of its proper divisors (1177512661768).

1242423220232 is a wasteful number, since it uses less digits than its factorization.

1242423220232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558294 (or 558261 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 1242423220232 its reverse (2320223242421), we get a palindrome (3562646462653).

The spelling of 1242423220232 in words is "one trillion, two hundred forty-two billion, four hundred twenty-three million, two hundred twenty thousand, two hundred thirty-two".