1011203311101 has 4 divisors (see below), whose sum is σ = 1348271081472. Its totient is φ = 674135540732.

The previous prime is 1011203311093. The next prime is 1011203311117. The reversal of 1011203311101 is 1011133021101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1011203311101 - 2³ = 1011203311093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011203311301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168533885181 + ... + 168533885186.

It is an arithmetic number, because the mean of its divisors is an integer number (337067770368).

Almost surely, 2^{1011203311101} is an apocalyptic number.

It is an amenable number.

1011203311101 is a deficient number, since it is larger than the sum of its proper divisors (337067770371).

1011203311101 is an equidigital number, since it uses as much as digits as its factorization.

1011203311101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337067770370.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 1011203311101 its reverse (1011133021101), we get a palindrome (2022336332202).

The spelling of 1011203311101 in words is "one trillion, eleven billion, two hundred three million, three hundred eleven thousand, one hundred one".