1141401631220 has 24 divisors (see below), whose sum is σ = 2403811473000. Its totient is φ = 455252452992.

The previous prime is 1141401631219. The next prime is 1141401631247. The reversal of 1141401631220 is 221361041411.

It can be written as a sum of positive squares in 4 ways, for example, as 4623456016 + 1136778175204 = 67996^2 + 1066198^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1141401631220.

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, 81755315 + ... + 81769274.

It is an arithmetic number, because the mean of its divisors is an integer number (100158811375).

Almost surely, 2^{1141401631220} is an apocalyptic number.

1141401631220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1141401631220 is an abundant number, since it is smaller than the sum of its proper divisors (1262409841780).

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

1141401631220 is a wasteful number, since it uses less digits than its factorization.

1141401631220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163524947 (or 163524945 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 1141401631220 its reverse (221361041411), we get a palindrome (1362762672631).

The spelling of 1141401631220 in words is "one trillion, one hundred forty-one billion, four hundred one million, six hundred thirty-one thousand, two hundred twenty".