2102023011 has 20 divisors (see below), whose sum is σ = 3083012360. Its totient is φ = 1273926720.

The previous prime is 2102022977. The next prime is 2102023043. The reversal of 2102023011 is 1103202012.

It is not a de Polignac number, because 2102023011 - 2¹³ = 2102014819 is a prime.

It is a super-2 number, since 2×2102023011² = 8837001477547012242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102023081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19995 + ... + 67851.

It is an arithmetic number, because the mean of its divisors is an integer number (154150618).

Almost surely, 2^2102023011 is an apocalyptic number.

2102023011 is a deficient number, since it is larger than the sum of its proper divisors (980989349).

2102023011 is an frugal number, since it uses more digits than its factorization.

2102023011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47904 (or 47871 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2102023011 is about 45847.8244958253. The cubic root of 2102023011 is about 1280.9902434476.

Adding to 2102023011 its reverse (1103202012), we get a palindrome (3205225023).

The spelling of 2102023011 in words is "two billion, one hundred two million, twenty-three thousand, eleven".