2140021123 has 2 divisors, whose sum is σ = 2140021124. Its totient is φ = 2140021122.

The previous prime is 2140021087. The next prime is 2140021127. The reversal of 2140021123 is 3211200412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2140021123 - 2⁹ = 2140020611 is a prime.

It is a super-2 number, since 2×2140021123² = 9159380813772362258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2140021097 and 2140021106.

It is not a weakly prime, because it can be changed into another prime (2140021127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070010561 + 1070010562.

It is an arithmetic number, because the mean of its divisors is an integer number (1070010562).

Almost surely, 2^2140021123 is an apocalyptic number.

2140021123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140021123 is an equidigital number, since it uses as much as digits as its factorization.

2140021123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2140021123 is about 46260.3623310497. The cubic root of 2140021123 is about 1288.6629824563.

Adding to 2140021123 its reverse (3211200412), we get a palindrome (5351221535).

The spelling of 2140021123 in words is "two billion, one hundred forty million, twenty-one thousand, one hundred twenty-three".