1215114423073 has 2 divisors, whose sum is σ = 1215114423074. Its totient is φ = 1215114423072.

The previous prime is 1215114423013. The next prime is 1215114423139. The reversal of 1215114423073 is 3703244115121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1203283945249 + 11830477824 = 1096943^2 + 108768^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1215114423073 is a prime.

It is a super-2 number, since 2×1215114423073² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1215114423013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607557211536 + 607557211537.

It is an arithmetic number, because the mean of its divisors is an integer number (607557211537).

Almost surely, 2^{1215114423073} is an apocalyptic number.

It is an amenable number.

1215114423073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1215114423073 is an equidigital number, since it uses as much as digits as its factorization.

1215114423073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

Adding to 1215114423073 its reverse (3703244115121), we get a palindrome (4918358538194).

The spelling of 1215114423073 in words is "one trillion, two hundred fifteen billion, one hundred fourteen million, four hundred twenty-three thousand, seventy-three".