11897323401601 has 4 divisors (see below), whose sum is σ = 12978898256304. Its totient is φ = 10815748546900.

The previous prime is 11897323401599. The next prime is 11897323401641. The reversal of 11897323401601 is 10610432379811.

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 not a de Polignac number, because 11897323401601 - 2¹ = 11897323401599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11897323401641) 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, 540787427335 + ... + 540787427356.

It is an arithmetic number, because the mean of its divisors is an integer number (3244724564076).

Almost surely, 2^{11897323401601} is an apocalyptic number.

11897323401601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11897323401601 is a deficient number, since it is larger than the sum of its proper divisors (1081574854703).

11897323401601 is a wasteful number, since it uses less digits than its factorization.

11897323401601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081574854702.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 11897323401601 in words is "eleven trillion, eight hundred ninety-seven billion, three hundred twenty-three million, four hundred one thousand, six hundred one".