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102023131223 = 132603687167
BaseRepresentation
bin101111100000100001…
…1010111000001010111
3100202100011112001112202
41133001003113001113
53132420410144343
6114511353435115
710241141210156
oct1370103270127
9322304461482
10102023131223
113a2a4441582
121793340ba9b
13980b9c5500
144d1ba1b59d
1529c1b6adb8
hex17c10d7057

102023131223 has 6 divisors (see below), whose sum is σ = 110474751744. Its totient is φ = 94175197896.

The previous prime is 102023131187. The next prime is 102023131267. The reversal of 102023131223 is 322131320201.

It is not a de Polignac number, because 102023131223 - 210 = 102023130199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102023131195 and 102023131204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102023131283) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 301843415 + ... + 301843752.

It is an arithmetic number, because the mean of its divisors is an integer number (18412458624).

Almost surely, 2102023131223 is an apocalyptic number.

102023131223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

102023131223 is a deficient number, since it is larger than the sum of its proper divisors (8451620521).

102023131223 is an equidigital number, since it uses as much as digits as its factorization.

102023131223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603687193 (or 603687180 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 102023131223 its reverse (322131320201), we get a palindrome (424154451424).

The spelling of 102023131223 in words is "one hundred two billion, twenty-three million, one hundred thirty-one thousand, two hundred twenty-three".

Divisors: 1 13 169 603687167 7847933171 102023131223