11811381701 has 8 divisors (see below), whose sum is σ = 13503819840. Its totient is φ = 10120218048.

The previous prime is 11811381697. The next prime is 11811381713. The reversal of 11811381701 is 10718311811.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11811381701 - 2² = 11811381697 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11811381761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298676 + ... + 335901.

It is an arithmetic number, because the mean of its divisors is an integer number (1687977480).

Almost surely, 2^11811381701 is an apocalyptic number.

It is an amenable number.

11811381701 is a deficient number, since it is larger than the sum of its proper divisors (1692438139).

11811381701 is an equidigital number, since it uses as much as digits as its factorization.

11811381701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637243.

The product of its (nonzero) digits is 1344, while the sum is 32.

The spelling of 11811381701 in words is "eleven billion, eight hundred eleven million, three hundred eighty-one thousand, seven hundred one".