1231100141120 has 168 divisors, whose sum is σ = 3186577832064. Its totient is φ = 452693090304.

The previous prime is 1231100141083. The next prime is 1231100141123. The reversal of 1231100141120 is 211410011321.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (1231100141123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3821849 + ... + 4131431.

Almost surely, 2^{1231100141120} is an apocalyptic number.

1231100141120 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 1231100141120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1593288916032).

1231100141120 is an abundant number, since it is smaller than the sum of its proper divisors (1955477690944).

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

1231100141120 is a wasteful number, since it uses less digits than its factorization.

1231100141120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309677 (or 309650 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1231100141120 its reverse (211410011321), we get a palindrome (1442510152441).

The spelling of 1231100141120 in words is "one trillion, two hundred thirty-one billion, one hundred million, one hundred forty-one thousand, one hundred twenty".