311402020204123 has 2 divisors, whose sum is σ = 311402020204124. Its totient is φ = 311402020204122.

The previous prime is 311402020204061. The next prime is 311402020204133. The reversal of 311402020204123 is 321402020204113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 311402020204123 - 2¹⁷ = 311402020073051 is a prime.

It is not a weakly prime, because it can be changed into another prime (311402020204133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155701010102061 + 155701010102062.

It is an arithmetic number, because the mean of its divisors is an integer number (155701010102062).

Almost surely, 2^{311402020204123} is an apocalyptic number.

311402020204123 is a deficient number, since it is larger than the sum of its proper divisors (1).

311402020204123 is an equidigital number, since it uses as much as digits as its factorization.

311402020204123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 311402020204123 its reverse (321402020204113), we get a palindrome (632804040408236).

The spelling of 311402020204123 in words is "three hundred eleven trillion, four hundred two billion, twenty million, two hundred four thousand, one hundred twenty-three".