1021133100103 has 4 divisors (see below), whose sum is σ = 1025592196840. Its totient is φ = 1016674003368.

The previous prime is 1021133100083. The next prime is 1021133100149. The reversal of 1021133100103 is 3010013311201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1021133100103 - 2²⁵ = 1021099545671 is a prime.

It is a super-2 number, since 2×1021133100103² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021133100193) 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, 2229548025 + ... + 2229548482.

It is an arithmetic number, because the mean of its divisors is an integer number (256398049210).

Almost surely, 2^{1021133100103} is an apocalyptic number.

1021133100103 is a deficient number, since it is larger than the sum of its proper divisors (4459096737).

1021133100103 is an equidigital number, since it uses as much as digits as its factorization.

1021133100103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4459096736.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 1021133100103 its reverse (3010013311201), we get a palindrome (4031146411304).

The spelling of 1021133100103 in words is "one trillion, twenty-one billion, one hundred thirty-three million, one hundred thousand, one hundred three".