1242020413312 has 32 divisors (see below), whose sum is σ = 2827814335920. Its totient is φ = 532294462464.

The previous prime is 1242020413301. The next prime is 1242020413357. The reversal of 1242020413312 is 2133140202421.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1242020413312² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 693090853 + ... + 693092644.

Almost surely, 2^{1242020413312} is an apocalyptic number.

It is an amenable number.

1242020413312 is an abundant number, since it is smaller than the sum of its proper divisors (1585793922608).

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

1242020413312 is an equidigital number, since it uses as much as digits as its factorization.

1242020413312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386183518 (or 1386183506 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1242020413312 its reverse (2133140202421), we get a palindrome (3375160615733).

The spelling of 1242020413312 in words is "one trillion, two hundred forty-two billion, twenty million, four hundred thirteen thousand, three hundred twelve".