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31014322133 = 42433730901
BaseRepresentation
bin11100111000100110…
…001111111111010101
32222001102220210202112
4130320212033333111
51002004131302013
622125304320405
72145364250144
oct347046177725
988042823675
1031014322133
111217585a293
126016773105
132c03578202
14170304375b
15c17bd8ba8
hex73898ffd5

31014322133 has 4 divisors (see below), whose sum is σ = 31015095468. Its totient is φ = 31013548800.

The previous prime is 31014322127. The next prime is 31014322139. The reversal of 31014322133 is 33122341013.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (31014322127) and next prime (31014322139).

It can be written as a sum of positive squares in 2 ways, for example, as 5565458404 + 25448863729 = 74602^2 + 159527^2 .

It is a cyclic number.

It is not a de Polignac number, because 31014322133 - 224 = 30997544917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31014322099 and 31014322108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31014322139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323018 + ... + 407883.

It is an arithmetic number, because the mean of its divisors is an integer number (7753773867).

Almost surely, 231014322133 is an apocalyptic number.

It is an amenable number.

31014322133 is a deficient number, since it is larger than the sum of its proper divisors (773335).

31014322133 is an equidigital number, since it uses as much as digits as its factorization.

31014322133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773334.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31014322133 its reverse (33122341013), we get a palindrome (64136663146).

It can be divided in two parts, 3101 and 4322133, that added together give a palindrome (4325234).

The spelling of 31014322133 in words is "thirty-one billion, fourteen million, three hundred twenty-two thousand, one hundred thirty-three".

Divisors: 1 42433 730901 31014322133