1141212020 has 48 divisors (see below), whose sum is σ = 2585751168. Its totient is φ = 420577920.

The previous prime is 1141212013. The next prime is 1141212049. The reversal of 1141212020 is 202121411.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1141211986 and 1141212004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144617 + ... + 152303.

It is an arithmetic number, because the mean of its divisors is an integer number (53869816).

Almost surely, 2^1141212020 is an apocalyptic number.

1141212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1141212020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1292875584).

1141212020 is an abundant number, since it is smaller than the sum of its proper divisors (1444539148).

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

1141212020 is a wasteful number, since it uses less digits than its factorization.

1141212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8280 (or 8278 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1141212020 is about 33781.8297313807. The cubic root of 1141212020 is about 1045.0140089542.

Adding to 1141212020 its reverse (202121411), we get a palindrome (1343333431).

It can be divided in two parts, 11412 and 12020, that added together give a palindrome (23432).

The spelling of 1141212020 in words is "one billion, one hundred forty-one million, two hundred twelve thousand, twenty".