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BaseRepresentation
bin111111010001111…
…1101001110100010
312110222110121112100
41332203331032202
513322034330132
6550410511230
7103422135324
oct17643751642
95428417470
102123355042
1199a640086
124b3135516
1327aba7403
14162009614
15c662c37c
hex7e8fd3a2

2123355042 has 24 divisors (see below), whose sum is σ = 4613431680. Its totient is φ = 705811320.

The previous prime is 2123355041. The next prime is 2123355043. The reversal of 2123355042 is 2405533212.

It is a happy number.

2123355042 is a `hidden beast` number, since 2 + 123 + 35 + 504 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (2123355041) and next prime (2123355043).

It is a junction number, because it is equal to n+sod(n) for n = 2123354997 and 2123355015.

It is not an unprimeable number, because it can be changed into a prime (2123355041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 157834 + ... + 170757.

It is an arithmetic number, because the mean of its divisors is an integer number (192226320).

Almost surely, 22123355042 is an apocalyptic number.

2123355042 is an abundant number, since it is smaller than the sum of its proper divisors (2490076638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2123355042 is a wasteful number, since it uses less digits than its factorization.

2123355042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328958 (or 328955 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 2123355042 is about 46079.8767576477. The cubic root of 2123355042 is about 1285.3089724209.

Adding to 2123355042 its reverse (2405533212), we get a palindrome (4528888254).

The spelling of 2123355042 in words is "two billion, one hundred twenty-three million, three hundred fifty-five thousand, forty-two".