1201317671906 has 16 divisors (see below), whose sum is σ = 1970744186880. Its totient is φ = 544678033680.

The previous prime is 1201317671893. The next prime is 1201317671923. The reversal of 1201317671906 is 6091767131021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68763746 + ... + 68781213.

It is an arithmetic number, because the mean of its divisors is an integer number (123171511680).

Almost surely, 2^{1201317671906} is an apocalyptic number.

1201317671906 is a deficient number, since it is larger than the sum of its proper divisors (769426514974).

1201317671906 is a wasteful number, since it uses less digits than its factorization.

1201317671906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137545369.

The product of its (nonzero) digits is 95256, while the sum is 44.

The spelling of 1201317671906 in words is "one trillion, two hundred one billion, three hundred seventeen million, six hundred seventy-one thousand, nine hundred six".