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1111213000231 = 1982171236169
BaseRepresentation
bin10000001010111001011…
…101001100011000100111
310221020020100022012100121
4100022321131030120213
5121201231012001411
62210252331022411
7143165615441215
oct20127135143047
93836210265317
101111213000231
11399298851034
1215b43ab9aa07
1380a2cb8c259
143bad6781cb5
151dd8a0b6571
hex102b974c627

1111213000231 has 8 divisors (see below), whose sum is σ = 1171122634800. Its totient is φ = 1051445839680.

The previous prime is 1111213000211. The next prime is 1111213000237. The reversal of 1111213000231 is 1320003121111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1111213000231 - 29 = 1111212999719 is a prime.

It is a super-2 number, since 2×11112130002312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111213000237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35602486 + ... + 35633683.

It is an arithmetic number, because the mean of its divisors is an integer number (146390329350).

Almost surely, 21111213000231 is an apocalyptic number.

1111213000231 is a deficient number, since it is larger than the sum of its proper divisors (59909634569).

1111213000231 is an equidigital number, since it uses as much as digits as its factorization.

1111213000231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71237009.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1111213000231 its reverse (1320003121111), we get a palindrome (2431216121342).

The spelling of 1111213000231 in words is "one trillion, one hundred eleven billion, two hundred thirteen million, two hundred thirty-one", and thus it is an aban number.

Divisors: 1 19 821 15599 71236169 1353487211 58484894749 1111213000231