1015121662063 has 2 divisors, whose sum is σ = 1015121662064. Its totient is φ = 1015121662062.

The previous prime is 1015121662013. The next prime is 1015121662091. The reversal of 1015121662063 is 3602661215101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1015121662063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1015121662003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507560831031 + 507560831032.

It is an arithmetic number, because the mean of its divisors is an integer number (507560831032).

Almost surely, 2^{1015121662063} is an apocalyptic number.

1015121662063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1015121662063 is an equidigital number, since it uses as much as digits as its factorization.

1015121662063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

Adding to 1015121662063 its reverse (3602661215101), we get a palindrome (4617782877164).

The spelling of 1015121662063 in words is "one trillion, fifteen billion, one hundred twenty-one million, six hundred sixty-two thousand, sixty-three".