2123201011 has 2 divisors, whose sum is σ = 2123201012. Its totient is φ = 2123201010.

The previous prime is 2123200993. The next prime is 2123201021. The reversal of 2123201011 is 1101023212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2123201011 - 2²⁹ = 1586330099 is a prime.

It is a super-2 number, since 2×2123201011² = 9015965066222844242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2123200982 and 2123201000.

It is not a weakly prime, because it can be changed into another prime (2123201021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061600505 + 1061600506.

It is an arithmetic number, because the mean of its divisors is an integer number (1061600506).

Almost surely, 2^2123201011 is an apocalyptic number.

2123201011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123201011 is an equidigital number, since it uses as much as digits as its factorization.

2123201011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2123201011 is about 46078.2053795501. The cubic root of 2123201011 is about 1285.2778923283.

Adding to 2123201011 its reverse (1101023212), we get a palindrome (3224224223).

The spelling of 2123201011 in words is "two billion, one hundred twenty-three million, two hundred one thousand, eleven".