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1111231213013 = 81112197112339
BaseRepresentation
bin10000001010111010100…
…010101010110111010101
310221020021121120111121002
4100022322202222313111
5121201300142304023
62210254221233045
7143166226314545
oct20127242526725
93836247514532
101111231213013
113992a8060619
1215b445102785
1380a3389804c
143bad8d63325
151dd8b9b2b28
hex102ba8aadd5

1111231213013 has 8 divisors (see below), whose sum is σ = 1112702535840. Its totient is φ = 1109760140880.

The previous prime is 1111231212941. The next prime is 1111231213019. The reversal of 1111231213013 is 3103121321111.

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

It is a cyclic number.

It is not a de Polignac number, because 1111231213013 - 214 = 1111231196629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111231213019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9835598 + ... + 9947936.

It is an arithmetic number, because the mean of its divisors is an integer number (139087816980).

Almost surely, 21111231213013 is an apocalyptic number.

It is an amenable number.

1111231213013 is a deficient number, since it is larger than the sum of its proper divisors (1471322827).

1111231213013 is a wasteful number, since it uses less digits than its factorization.

1111231213013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125347.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1111231213013 its reverse (3103121321111), we get a palindrome (4214352534124).

The spelling of 1111231213013 in words is "one trillion, one hundred eleven billion, two hundred thirty-one million, two hundred thirteen thousand, thirteen".

Divisors: 1 811 12197 112339 9891767 91106929 1370198783 1111231213013