2012402123 has 2 divisors, whose sum is σ = 2012402124. Its totient is φ = 2012402122.

The previous prime is 2012402113. The next prime is 2012402141. The reversal of 2012402123 is 3212042102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2012402123 - 2¹⁰ = 2012401099 is a prime.

It is not a weakly prime, because it can be changed into another prime (2012402113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006201061 + 1006201062.

It is an arithmetic number, because the mean of its divisors is an integer number (1006201062).

Almost surely, 2^2012402123 is an apocalyptic number.

2012402123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012402123 is an equidigital number, since it uses as much as digits as its factorization.

2012402123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2012402123 is about 44859.8052046595. The cubic root of 2012402123 is about 1262.5199678964.

Adding to 2012402123 its reverse (3212042102), we get a palindrome (5224444225).

The spelling of 2012402123 in words is "two billion, twelve million, four hundred two thousand, one hundred twenty-three".