1201862965271 has 4 divisors (see below), whose sum is σ = 1219801218552. Its totient is φ = 1183924711992.

The previous prime is 1201862965157. The next prime is 1201862965309. The reversal of 1201862965271 is 1725692681021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201862965271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201862962271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8969126540 + ... + 8969126673.

It is an arithmetic number, because the mean of its divisors is an integer number (304950304638).

Almost surely, 2^{1201862965271} is an apocalyptic number.

1201862965271 is a deficient number, since it is larger than the sum of its proper divisors (17938253281).

1201862965271 is an equidigital number, since it uses as much as digits as its factorization.

1201862965271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17938253280.

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 1201862965271 in words is "one trillion, two hundred one billion, eight hundred sixty-two million, nine hundred sixty-five thousand, two hundred seventy-one".