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1111213233120 = 25355717975087
BaseRepresentation
bin10000001010111001011…
…110000101001111100000
310221020020100202000211010
4100022321132011033200
5121201231041424440
62210252340020520
7143165620431204
oct20127136051740
93836210660733
101111213233120
113992989a0001
1215b43b091740
1380a2cc41263
143bad6802b04
151dd8a110580
hex102b97853e0

1111213233120 has 192 divisors, whose sum is σ = 3511541569536. Its totient is φ = 295375349760.

The previous prime is 1111213233107. The next prime is 1111213233139. The reversal of 1111213233120 is 213323121111.

It is a super-2 number, since 2×11112132331202 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 218439217 + ... + 218444303.

It is an arithmetic number, because the mean of its divisors is an integer number (18289279008).

Almost surely, 21111213233120 is an apocalyptic number.

1111213233120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111213233120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1755770784768).

1111213233120 is an abundant number, since it is smaller than the sum of its proper divisors (2400328336416).

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

1111213233120 is a wasteful number, since it uses less digits than its factorization.

1111213233120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6473 (or 6465 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1111213233120 its reverse (213323121111), we get a palindrome (1324536354231).

The spelling of 1111213233120 in words is "one trillion, one hundred eleven billion, two hundred thirteen million, two hundred thirty-three thousand, one hundred twenty".