1202142241309 has 2 divisors, whose sum is σ = 1202142241310. Its totient is φ = 1202142241308.

The previous prime is 1202142241271. The next prime is 1202142241319. The reversal of 1202142241309 is 9031422412021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1200455496409 + 1686744900 = 1095653^2 + 41070^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202142241309 - 2²⁹ = 1201605370397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202142241319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601071120654 + 601071120655.

It is an arithmetic number, because the mean of its divisors is an integer number (601071120655).

Almost surely, 2^{1202142241309} is an apocalyptic number.

It is an amenable number.

1202142241309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202142241309 is an equidigital number, since it uses as much as digits as its factorization.

1202142241309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 1202142241309 in words is "one trillion, two hundred two billion, one hundred forty-two million, two hundred forty-one thousand, three hundred nine".