1201868700509 has 4 divisors (see below), whose sum is σ = 1202127561216. Its totient is φ = 1201609839804.

The previous prime is 1201868700481. The next prime is 1201868700533. The reversal of 1201868700509 is 9050078681021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1201868700509 - 2⁴⁰ = 102357072733 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 (1201868700589) 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, 129423389 + ... + 129432674.

It is an arithmetic number, because the mean of its divisors is an integer number (300531890304).

Almost surely, 2^{1201868700509} is an apocalyptic number.

It is an amenable number.

1201868700509 is a deficient number, since it is larger than the sum of its proper divisors (258860707).

1201868700509 is an equidigital number, since it uses as much as digits as its factorization.

1201868700509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258860706.

The product of its (nonzero) digits is 241920, while the sum is 47.

The spelling of 1201868700509 in words is "one trillion, two hundred one billion, eight hundred sixty-eight million, seven hundred thousand, five hundred nine".