11312021214 has 48 divisors (see below), whose sum is σ = 26421892224. Its totient is φ = 3477038400.

The previous prime is 11312021183. The next prime is 11312021243. The reversal of 11312021214 is 41212021311.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 207504 + ... + 256284.

It is an arithmetic number, because the mean of its divisors is an integer number (550456088).

Almost surely, 2^11312021214 is an apocalyptic number.

11312021214 is an abundant number, since it is smaller than the sum of its proper divisors (15109871010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11312021214 is a wasteful number, since it uses less digits than its factorization.

11312021214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49793 (or 49790 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 11312021214 its reverse (41212021311), we get a palindrome (52524042525).

The spelling of 11312021214 in words is "eleven billion, three hundred twelve million, twenty-one thousand, two hundred fourteen".