101021103 has 12 divisors (see below), whose sum is σ = 146613688. Its totient is φ = 67026960.

The previous prime is 101021099. The next prime is 101021117. The reversal of 101021103 is 301120101.

It is not a de Polignac number, because 101021103 - 2² = 101021099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101021153) 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, 24700 + ... + 28497.

Almost surely, 2^101021103 is an apocalyptic number.

101021103 is a deficient number, since it is larger than the sum of its proper divisors (45592585).

101021103 is a wasteful number, since it uses less digits than its factorization.

101021103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53414 (or 53411 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 101021103 is about 10050.9254797755. The cubic root of 101021103 is about 465.7333831328.

Adding to 101021103 its reverse (301120101), we get a palindrome (402141204).

It can be divided in two parts, 101021 and 103, that added together give a square (101124 = 318²).

The spelling of 101021103 in words is "one hundred one million, twenty-one thousand, one hundred three".