Search a number
-
+
2131110232111 = 71571939135789
BaseRepresentation
bin11111000000110000000…
…100011000000000101111
321112201202201212201201201
4133000300010120000233
5234404003204411421
64311004000150331
7306652620042520
oct37006004300057
97481681781651
102131110232111
11751887193813
122a50346083a7
13125c6945cc83
147520959c847
153a67d548b91
hex1f03011802f

2131110232111 has 8 divisors (see below), whose sum is σ = 2451067638560. Its totient is φ = 1815031097568.

The previous prime is 2131110232091. The next prime is 2131110232127. The reversal of 2131110232111 is 1112320111312.

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 2131110232111 - 27 = 2131110231983 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 (2131110232711) 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, 969566796 + ... + 969568993.

It is an arithmetic number, because the mean of its divisors is an integer number (306383454820).

Almost surely, 22131110232111 is an apocalyptic number.

2131110232111 is a deficient number, since it is larger than the sum of its proper divisors (319957406449).

2131110232111 is a wasteful number, since it uses less digits than its factorization.

2131110232111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939135953.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 2131110232111 its reverse (1112320111312), we get a palindrome (3243430343423).

The spelling of 2131110232111 in words is "two trillion, one hundred thirty-one billion, one hundred ten million, two hundred thirty-two thousand, one hundred eleven".

Divisors: 1 7 157 1099 1939135789 13573950523 304444318873 2131110232111