3621111023 has 4 divisors (see below), whose sum is σ = 3737921088. Its totient is φ = 3504300960.

The previous prime is 3621111001. The next prime is 3621111047. The reversal of 3621111023 is 3201111263.

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 3621111023 - 2⁸ = 3621110767 is a prime.

It is a super-2 number, since 2×3621111023² = 26224890081784213058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3621110986 and 3621111004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3621111073) 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, 58404986 + ... + 58405047.

It is an arithmetic number, because the mean of its divisors is an integer number (934480272).

Almost surely, 2^3621111023 is an apocalyptic number.

3621111023 is a deficient number, since it is larger than the sum of its proper divisors (116810065).

3621111023 is a wasteful number, since it uses less digits than its factorization.

3621111023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116810064.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 3621111023 is about 60175.6680311901. The cubic root of 3621111023 is about 1535.6088751523.

Adding to 3621111023 its reverse (3201111263), we get a palindrome (6822222286).

The spelling of 3621111023 in words is "three billion, six hundred twenty-one million, one hundred eleven thousand, twenty-three".