Search a number
-
+
31132010123 = 373203262693
BaseRepresentation
bin11100111111100111…
…001100011010001011
32222100122100222022222
4130333213030122023
51002224243310443
622145111004255
72151323501624
oct347747143213
988318328288
1031132010123
1112226231a95
12604a06968b
132c21a72986
14171491aa4b
15c231d4468
hex73f9cc68b

31132010123 has 8 divisors (see below), whose sum is σ = 31983519888. Its totient is φ = 30281032224.

The previous prime is 31132010027. The next prime is 31132010137. The reversal of 31132010123 is 32101023113.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31132010123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31132010423) 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, 12836 + ... + 249857.

It is an arithmetic number, because the mean of its divisors is an integer number (3997939986).

Almost surely, 231132010123 is an apocalyptic number.

31132010123 is a deficient number, since it is larger than the sum of its proper divisors (851509765).

31132010123 is a wasteful number, since it uses less digits than its factorization.

31132010123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265933.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31132010123 its reverse (32101023113), we get a palindrome (63233033236).

The spelling of 31132010123 in words is "thirty-one billion, one hundred thirty-two million, ten thousand, one hundred twenty-three".

Divisors: 1 37 3203 118511 262693 9719641 841405679 31132010123