11312021110 has 16 divisors (see below), whose sum is σ = 21927918096. Its totient is φ = 4176746208.

The previous prime is 11312021101. The next prime is 11312021131. The reversal of 11312021110 is 1112021311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

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, 43507644 + ... + 43507903.

It is an arithmetic number, because the mean of its divisors is an integer number (1370494881).

Almost surely, 2^11312021110 is an apocalyptic number.

11312021110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11312021110 is a deficient number, since it is larger than the sum of its proper divisors (10615896986).

11312021110 is a wasteful number, since it uses less digits than its factorization.

11312021110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87015567.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 11312021110 its reverse (1112021311), we get a palindrome (12424042421).

The spelling of 11312021110 in words is "eleven billion, three hundred twelve million, twenty-one thousand, one hundred ten".