1242134012120 has 32 divisors (see below), whose sum is σ = 2813558598000. Its totient is φ = 493519014528.

The previous prime is 1242134012107. The next prime is 1242134012153. The reversal of 1242134012120 is 212104312421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104199914 + ... + 104211833.

Almost surely, 2^{1242134012120} is an apocalyptic number.

1242134012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242134012120 is an abundant number, since it is smaller than the sum of its proper divisors (1571424585880).

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

1242134012120 is a wasteful number, since it uses less digits than its factorization.

1242134012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208411907 (or 208411903 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1242134012120 its reverse (212104312421), we get a palindrome (1454238324541).

The spelling of 1242134012120 in words is "one trillion, two hundred forty-two billion, one hundred thirty-four million, twelve thousand, one hundred twenty".