623204731211 has 2 divisors, whose sum is σ = 623204731212. Its totient is φ = 623204731210.

The previous prime is 623204731199. The next prime is 623204731271. The reversal of 623204731211 is 112137402326.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 623204731211 - 2⁶ = 623204731147 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (623204731271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311602365605 + 311602365606.

It is an arithmetic number, because the mean of its divisors is an integer number (311602365606).

Almost surely, 2^623204731211 is an apocalyptic number.

623204731211 is a deficient number, since it is larger than the sum of its proper divisors (1).

623204731211 is an equidigital number, since it uses as much as digits as its factorization.

623204731211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 623204731211 in words is "six hundred twenty-three billion, two hundred four million, seven hundred thirty-one thousand, two hundred eleven".