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2131111112033 = 23315381555461
BaseRepresentation
bin11111000000110000000…
…111101110110101100001
321112201202210112102202102
4133000300013232311201
5234404003421041113
64311004031100145
7306652630366061
oct37006007566541
97481683472672
102131111112033
11751887734922
122a5034971655
13125c696aa637
147520974b3a1
153a67d66e758
hex1f0301eed61

2131111112033 has 16 divisors (see below), whose sum is σ = 2295933299712. Its totient is φ = 1972327368000.

The previous prime is 2131111112023. The next prime is 2131111112069. The reversal of 2131111112033 is 3302111111312.

It is a cyclic number.

It is not a de Polignac number, because 2131111112033 - 24 = 2131111112017 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2131111111996 and 2131111112014.

It is not an unprimeable number, because it can be changed into a prime (2131111112023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3558923 + ... + 4114383.

It is an arithmetic number, because the mean of its divisors is an integer number (143495831232).

Almost surely, 22131111112033 is an apocalyptic number.

2131111112033 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2131111112033 is a deficient number, since it is larger than the sum of its proper divisors (164822187679).

2131111112033 is a wasteful number, since it uses less digits than its factorization.

2131111112033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560896.

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

Adding to 2131111112033 its reverse (3302111111312), we get a palindrome (5433222223345).

The spelling of 2131111112033 in words is "two trillion, one hundred thirty-one billion, one hundred eleven million, one hundred twelve thousand, thirty-three".

Divisors: 1 23 31 713 5381 123763 166811 555461 3836653 12775603 17219291 396043693 2988935641 68745519743 92657004871 2131111112033