1101020203 has 8 divisors (see below), whose sum is σ = 1127501936. Its totient is φ = 1074578400.

The previous prime is 1101020183. The next prime is 1101020209. The reversal of 1101020203 is 3020201011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1101020203 - 2²⁹ = 564149291 is a prime.

It is a super-2 number, since 2×1101020203² = 2424490974828322418, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1101020203.

It is not an unprimeable number, because it can be changed into a prime (1101020209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50113 + ... + 68653.

It is an arithmetic number, because the mean of its divisors is an integer number (140937742).

Almost surely, 2^1101020203 is an apocalyptic number.

1101020203 is a deficient number, since it is larger than the sum of its proper divisors (26481733).

1101020203 is a wasteful number, since it uses less digits than its factorization.

1101020203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19965.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1101020203 is about 33181.6244780149. The cubic root of 1101020203 is about 1032.5991487470.

Adding to 1101020203 its reverse (3020201011), we get a palindrome (4121221214).

It can be divided in two parts, 11010 and 20203, that added together give a palindrome (31213).

The spelling of 1101020203 in words is "one billion, one hundred one million, twenty thousand, two hundred three".