11312021104 has 10 divisors (see below), whose sum is σ = 21917040920. Its totient is φ = 5656010544.

The previous prime is 11312021101. The next prime is 11312021131. The reversal of 11312021104 is 40112021311.

It is a Harshad number since it is a multiple of its sum of digits (16), and also a Moran number because the ratio is a prime number: 707001319 = 11312021104 / (1 + 1 + 3 + 1 + 2 + 0 + 2 + 1 + 1 + 0 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312021101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353500644 + ... + 353500675.

It is an arithmetic number, because the mean of its divisors is an integer number (2191704092).

Almost surely, 2^11312021104 is an apocalyptic number.

It is an amenable number.

11312021104 is a deficient number, since it is larger than the sum of its proper divisors (10605019816).

11312021104 is an equidigital number, since it uses as much as digits as its factorization.

11312021104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707001327 (or 707001321 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11312021104 its reverse (40112021311), we get a palindrome (51424042415).

The spelling of 11312021104 in words is "eleven billion, three hundred twelve million, twenty-one thousand, one hundred four".