1213202010973 has 2 divisors, whose sum is σ = 1213202010974. Its totient is φ = 1213202010972.

The previous prime is 1213202010953. The next prime is 1213202011027. The reversal of 1213202010973 is 3790102023121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 821048017689 + 392153993284 = 906117^2 + 626222^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1213202010973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213202010913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606601005486 + 606601005487.

It is an arithmetic number, because the mean of its divisors is an integer number (606601005487).

Almost surely, 2^{1213202010973} is an apocalyptic number.

It is an amenable number.

1213202010973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213202010973 is an equidigital number, since it uses as much as digits as its factorization.

1213202010973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The spelling of 1213202010973 in words is "one trillion, two hundred thirteen billion, two hundred two million, ten thousand, nine hundred seventy-three".