123335557783 has 2 divisors, whose sum is σ = 123335557784. Its totient is φ = 123335557782.

The previous prime is 123335557771. The next prime is 123335557861. The reversal of 123335557783 is 387755533321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123335557783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123335557783.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123335557733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61667778891 + 61667778892.

It is an arithmetic number, because the mean of its divisors is an integer number (61667778892).

Almost surely, 2^123335557783 is an apocalyptic number.

123335557783 is a deficient number, since it is larger than the sum of its proper divisors (1).

123335557783 is an equidigital number, since it uses as much as digits as its factorization.

123335557783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7938000, while the sum is 52.

The spelling of 123335557783 in words is "one hundred twenty-three billion, three hundred thirty-five million, five hundred fifty-seven thousand, seven hundred eighty-three".