Search a number
-
+
23013211123 = 737199446503
BaseRepresentation
bin10101011011101100…
…011011101111110011
32012101211102020211201
4111123230123233303
5334112340223443
614323324552031
71443201031660
oct253354335763
965354366751
1023013211123
11983a3a3151
1245630b2617
132229a364b6
14118456aa67
158ea56e34d
hex55bb1bbf3

23013211123 has 16 divisors (see below), whose sum is σ = 27147443200. Its totient is φ = 19095997536.

The previous prime is 23013211003. The next prime is 23013211127. The reversal of 23013211123 is 32111231032.

It is a de Polignac number, because none of the positive numbers 2k-23013211123 is a prime.

It is a super-2 number, since 2×230132111232 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23013211123.

It is not an unprimeable number, because it can be changed into a prime (23013211127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171711 + ... + 274792.

It is an arithmetic number, because the mean of its divisors is an integer number (1696715200).

Almost surely, 223013211123 is an apocalyptic number.

23013211123 is a deficient number, since it is larger than the sum of its proper divisors (4134232077).

23013211123 is a wasteful number, since it uses less digits than its factorization.

23013211123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446746.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23013211123 its reverse (32111231032), we get a palindrome (55124442155).

The spelling of 23013211123 in words is "twenty-three billion, thirteen million, two hundred eleven thousand, one hundred twenty-three".

Divisors: 1 7 37 199 259 1393 7363 51541 446503 3125521 16520611 88854097 115644277 621978679 3287601589 23013211123