1002012023057 has 2 divisors, whose sum is σ = 1002012023058. Its totient is φ = 1002012023056.

The previous prime is 1002012023029. The next prime is 1002012023093. The reversal of 1002012023057 is 7503202102001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1001592633616 + 419389441 = 1000796^2 + 20479^2 .

It is an emirp because it is prime and its reverse (7503202102001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002012023057 is a prime.

It is not a weakly prime, because it can be changed into another prime (1002012020057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501006011528 + 501006011529.

It is an arithmetic number, because the mean of its divisors is an integer number (501006011529).

Almost surely, 2^{1002012023057} is an apocalyptic number.

It is an amenable number.

1002012023057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002012023057 is an equidigital number, since it uses as much as digits as its factorization.

1002012023057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

Adding to 1002012023057 its reverse (7503202102001), we get a palindrome (8505214125058).

The spelling of 1002012023057 in words is "one trillion, two billion, twelve million, twenty-three thousand, fifty-seven".