1201382349409 has 4 divisors (see below), whose sum is σ = 1310598926640. Its totient is φ = 1092165772180.

The previous prime is 1201382349407. The next prime is 1201382349437. The reversal of 1201382349409 is 9049432831021.

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 1201382349409 - 2¹ = 1201382349407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201382349403) 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, 54608288599 + ... + 54608288620.

It is an arithmetic number, because the mean of its divisors is an integer number (327649731660).

Almost surely, 2^{1201382349409} is an apocalyptic number.

It is an amenable number.

1201382349409 is a deficient number, since it is larger than the sum of its proper divisors (109216577231).

1201382349409 is a wasteful number, since it uses less digits than its factorization.

1201382349409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109216577230.

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 1201382349409 in words is "one trillion, two hundred one billion, three hundred eighty-two million, three hundred forty-nine thousand, four hundred nine".