111231302022020 has 96 divisors (see below), whose sum is σ = 239555534641920. Its totient is φ = 43372697945600.

The previous prime is 111231302022013. The next prime is 111231302022031. The reversal of 111231302022020 is 20220203132111.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 111231302021983 and 111231302022001.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47992241 + ... + 50256519.

It is an arithmetic number, because the mean of its divisors is an integer number (2495370152520).

Almost surely, 2^{111231302022020} is an apocalyptic number.

111231302022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111231302022020 is an abundant number, since it is smaller than the sum of its proper divisors (128324232619900).

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

111231302022020 is a wasteful number, since it uses less digits than its factorization.

111231302022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2264765 (or 2264763 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 111231302022020 its reverse (20220203132111), we get a palindrome (131451505154131).

The spelling of 111231302022020 in words is "one hundred eleven trillion, two hundred thirty-one billion, three hundred two million, twenty-two thousand, twenty".