262603990123 has 2 divisors, whose sum is σ = 262603990124. Its totient is φ = 262603990122.

The previous prime is 262603990111. The next prime is 262603990127. The reversal of 262603990123 is 321099306262.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 262603990123 - 2¹³ = 262603981931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 262603990123.

It is not a weakly prime, because it can be changed into another prime (262603990127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131301995061 + 131301995062.

It is an arithmetic number, because the mean of its divisors is an integer number (131301995062).

Almost surely, 2^262603990123 is an apocalyptic number.

262603990123 is a deficient number, since it is larger than the sum of its proper divisors (1).

262603990123 is an equidigital number, since it uses as much as digits as its factorization.

262603990123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 43.

The spelling of 262603990123 in words is "two hundred sixty-two billion, six hundred three million, nine hundred ninety thousand, one hundred twenty-three".