110421213231 has 16 divisors (see below), whose sum is σ = 169995547904. Its totient is φ = 62447341824.

The previous prime is 110421213197. The next prime is 110421213271. The reversal of 110421213231 is 132312124011.

It is not a de Polignac number, because 110421213231 - 2¹⁹ = 110420688943 is a prime.

It is a super-2 number, since 2×110421213231² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 110421213198 and 110421213207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110421213271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27101845 + ... + 27105918.

It is an arithmetic number, because the mean of its divisors is an integer number (10624721744).

Almost surely, 2^110421213231 is an apocalyptic number.

110421213231 is a deficient number, since it is larger than the sum of its proper divisors (59574334673).

110421213231 is an equidigital number, since it uses as much as digits as its factorization.

110421213231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54207870.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 110421213231 its reverse (132312124011), we get a palindrome (242733337242).

The spelling of 110421213231 in words is "one hundred ten billion, four hundred twenty-one million, two hundred thirteen thousand, two hundred thirty-one".