1201134020020 has 48 divisors (see below), whose sum is σ = 2778404323968. Its totient is φ = 432535455360.

The previous prime is 1201134020017. The next prime is 1201134020059. The reversal of 1201134020020 is 200204311021.

It is a junction number, because it is equal to n+sod(n) for n = 1201134019976 and 1201134020003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26480739 + ... + 26526058.

It is an arithmetic number, because the mean of its divisors is an integer number (57883423416).

Almost surely, 2^{1201134020020} is an apocalyptic number.

1201134020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201134020020 is an abundant number, since it is smaller than the sum of its proper divisors (1577270303948).

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

1201134020020 is a wasteful number, since it uses less digits than its factorization.

1201134020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53006920 (or 53006918 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1201134020020 its reverse (200204311021), we get a palindrome (1401338331041).

The spelling of 1201134020020 in words is "one trillion, two hundred one billion, one hundred thirty-four million, twenty thousand, twenty".