1001011231100 has 36 divisors (see below), whose sum is σ = 2218411283424. Its totient is φ = 391885246080.

The previous prime is 1001011231069. The next prime is 1001011231109. The reversal of 1001011231100 is 11321101001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001011231109) 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, 106485857 + ... + 106495256.

Almost surely, 2^{1001011231100} is an apocalyptic number.

1001011231100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001011231100 is an abundant number, since it is smaller than the sum of its proper divisors (1217400052324).

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

1001011231100 is a wasteful number, since it uses less digits than its factorization.

1001011231100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212981174 (or 212981167 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 1001011231100 its reverse (11321101001), we get a palindrome (1012332332101).

The spelling of 1001011231100 in words is "one trillion, one billion, eleven million, two hundred thirty-one thousand, one hundred".