11377981821723 has 32 divisors (see below), whose sum is σ = 16590244704000. Its totient is φ = 6878903322240.

The previous prime is 11377981821719. The next prime is 11377981821757. The reversal of 11377981821723 is 32712818977311.

It is a happy number.

It is not a de Polignac number, because 11377981821723 - 2² = 11377981821719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11377981821793) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37608165 + ... + 37909497.

It is an arithmetic number, because the mean of its divisors is an integer number (518445147000).

Almost surely, 2^{11377981821723} is an apocalyptic number.

11377981821723 is a deficient number, since it is larger than the sum of its proper divisors (5212262882277).

11377981821723 is a wasteful number, since it uses less digits than its factorization.

11377981821723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304139.

The product of its digits is 7112448, while the sum is 60.

The spelling of 11377981821723 in words is "eleven trillion, three hundred seventy-seven billion, nine hundred eighty-one million, eight hundred twenty-one thousand, seven hundred twenty-three".