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12220031101023 = 321357781233447
BaseRepresentation
bin1011000111010011001010…
…0111001110100001011111
31121021020000222102011010100
42301310302213032201133
53100203110430213043
641553445500112143
72400603522345654
oct261646247164137
947236028364110
1012220031101023
113991538a87749
1214543a7835653
136a8461985855
1430364a15dc2b
15162d0ec05cd3
hexb1d329ce85f

12220031101023 has 6 divisors (see below), whose sum is σ = 17651156034824. Its totient is φ = 8146687400676.

The previous prime is 12220031101021. The next prime is 12220031101067. The reversal of 12220031101023 is 32010113002221.

12220031101023 is a `hidden beast` number, since 122 + 200 + 311 + 0 + 10 + 23 = 666.

It is not a de Polignac number, because 12220031101023 - 21 = 12220031101021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12220031100987 and 12220031101005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220031101021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 678890616715 + ... + 678890616732.

Almost surely, 212220031101023 is an apocalyptic number.

12220031101023 is a deficient number, since it is larger than the sum of its proper divisors (5431124933801).

12220031101023 is a wasteful number, since it uses less digits than its factorization.

12220031101023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357781233453 (or 1357781233450 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12220031101023 its reverse (32010113002221), we get a palindrome (44230144103244).

The spelling of 12220031101023 in words is "twelve trillion, two hundred twenty billion, thirty-one million, one hundred one thousand, twenty-three".

Divisors: 1 3 9 1357781233447 4073343700341 12220031101023