1242342132512 has 24 divisors (see below), whose sum is σ = 2634004233756. Its totient is φ = 573388676352.

The previous prime is 1242342132509. The next prime is 1242342132529. The reversal of 1242342132512 is 2152312432421.

It can be written as a sum of positive squares in 2 ways, for example, as 1242342076816 + 55696 = 1114604^2 + 236^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1493199263 + ... + 1493200094.

Almost surely, 2^{1242342132512} is an apocalyptic number.

It is an amenable number.

1242342132512 is an abundant number, since it is smaller than the sum of its proper divisors (1391662101244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1242342132512 is a wasteful number, since it uses less digits than its factorization.

1242342132512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2986399380 (or 2986399372 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

Adding to 1242342132512 its reverse (2152312432421), we get a palindrome (3394654564933).

The spelling of 1242342132512 in words is "one trillion, two hundred forty-two billion, three hundred forty-two million, one hundred thirty-two thousand, five hundred twelve".