1202861213 has 2 divisors, whose sum is σ = 1202861214. Its totient is φ = 1202861212.

The previous prime is 1202861183. The next prime is 1202861221. The reversal of 1202861213 is 3121682021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1191423289 + 11437924 = 34517^2 + 3382^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202861213 - 2²⁶ = 1135752349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202861243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601430606 + 601430607.

It is an arithmetic number, because the mean of its divisors is an integer number (601430607).

Almost surely, 2^1202861213 is an apocalyptic number.

It is an amenable number.

1202861213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202861213 is an equidigital number, since it uses as much as digits as its factorization.

1202861213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1202861213 is about 34682.2896158832. The cubic root of 1202861213 is about 1063.5024800664.

The spelling of 1202861213 in words is "one billion, two hundred two million, eight hundred sixty-one thousand, two hundred thirteen".