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102020112023 = 580271758149
BaseRepresentation
bin101111100000011011…
…1110101111010010111
3100202022221211122222112
41133000313311322113
53132414122041043
6114511205021235
710241103433634
oct1370067657227
9322287748875
10102020112023
113a2a276a175
12179323b481b
13980b1a91bb
144d1b47318b
1529c1771518
hex17c0df5e97

102020112023 has 4 divisors (see below), whose sum is σ = 102021928200. Its totient is φ = 102018295848.

The previous prime is 102020111987. The next prime is 102020112041. The reversal of 102020112023 is 320211020201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 102020112023 - 26 = 102020111959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102020111989 and 102020112007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102020112053) 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 3 ways as a sum of consecutive naturals, for example, 821048 + ... + 937101.

It is an arithmetic number, because the mean of its divisors is an integer number (25505482050).

Almost surely, 2102020112023 is an apocalyptic number.

102020112023 is a deficient number, since it is larger than the sum of its proper divisors (1816177).

102020112023 is an equidigital number, since it uses as much as digits as its factorization.

102020112023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1816176.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 102020112023 its reverse (320211020201), we get a palindrome (422231132224).

The spelling of 102020112023 in words is "one hundred two billion, twenty million, one hundred twelve thousand, twenty-three".

Divisors: 1 58027 1758149 102020112023