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111302012131 = 409859316801
BaseRepresentation
bin110011110101000011…
…1011110110011100011
3101122021211101001020121
41213222013132303203
53310421303342011
6123044220221111
711020111331122
oct1475207366343
9348254331217
10111302012131
11432260a20a2
12196a299a797
13a65a18a99b
14555c0a9ab9
152d66583e71
hex19ea1dece3

111302012131 has 8 divisors (see below), whose sum is σ = 111704385200. Its totient is φ = 110900275200.

The previous prime is 111302012119. The next prime is 111302012153. The reversal of 111302012131 is 131210203111.

It is a happy number.

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 111302012131 - 215 = 111301979363 is a prime.

It is a super-2 number, since 2×1113020121312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111302012161) 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, 192931 + ... + 509731.

It is an arithmetic number, because the mean of its divisors is an integer number (13963048150).

Almost surely, 2111302012131 is an apocalyptic number.

111302012131 is a deficient number, since it is larger than the sum of its proper divisors (402373069).

111302012131 is an equidigital number, since it uses as much as digits as its factorization.

111302012131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318069.

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

Adding to 111302012131 its reverse (131210203111), we get a palindrome (242512215242).

The spelling of 111302012131 in words is "one hundred eleven billion, three hundred two million, twelve thousand, one hundred thirty-one".

Divisors: 1 409 859 316801 351331 129571609 272132059 111302012131