1002131111232 has 84 divisors (see below), whose sum is σ = 3041394266196. Its totient is φ = 314394071040.

The previous prime is 1002131111221. The next prime is 1002131111237. The reversal of 1002131111232 is 2321111312001.

1002131111232 is a `hidden beast` number, since 100 + 21 + 311 + 1 + 1 + 232 = 666.

1002131111232 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 673279327296 + 328851783936 = 820536^2 + 573456^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002131111237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51161119 + ... + 51180702.

Almost surely, 2^{1002131111232} is an apocalyptic number.

1002131111232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1002131111232 is an abundant number, since it is smaller than the sum of its proper divisors (2039263154964).

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

1002131111232 is a wasteful number, since it uses less digits than its factorization.

1002131111232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102341856 (or 102341843 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1002131111232 its reverse (2321111312001), we get a palindrome (3323242423233).

The spelling of 1002131111232 in words is "one trillion, two billion, one hundred thirty-one million, one hundred eleven thousand, two hundred thirty-two".