1011203311100 has 36 divisors (see below), whose sum is σ = 2309801251800. Its totient is φ = 383192832960.

The previous prime is 1011203311093. The next prime is 1011203311117. The reversal of 1011203311100 is 11133021101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 266104235 + ... + 266108034.

Almost surely, 2^{1011203311100} is an apocalyptic number.

1011203311100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011203311100 is an abundant number, since it is smaller than the sum of its proper divisors (1298597940700).

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

1011203311100 is a wasteful number, since it uses less digits than its factorization.

1011203311100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532212302 (or 532212295 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 1011203311100 its reverse (11133021101), we get a palindrome (1022336332201).

The spelling of 1011203311100 in words is "one trillion, eleven billion, two hundred three million, three hundred eleven thousand, one hundred".