1022865079123 has 2 divisors, whose sum is σ = 1022865079124. Its totient is φ = 1022865079122.

The previous prime is 1022865079111. The next prime is 1022865079153. The reversal of 1022865079123 is 3219705682201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022865079123 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022865079153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511432539561 + 511432539562.

It is an arithmetic number, because the mean of its divisors is an integer number (511432539562).

Almost surely, 2^{1022865079123} is an apocalyptic number.

1022865079123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022865079123 is an equidigital number, since it uses as much as digits as its factorization.

1022865079123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 1022865079123 in words is "one trillion, twenty-two billion, eight hundred sixty-five million, seventy-nine thousand, one hundred twenty-three".