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1023101131223 = 2581733962851
BaseRepresentation
bin11101110001101011001…
…01000101100111010111
310121210210200021111000202
432320311211011213113
5113230302342144343
62102001155531115
7133626254061563
oct16706545054727
93553720244022
101023101131223
11364992a09786
1214634a5b9a9b
137562a2a6362
143773853c6a3
151b92e8a0db8
hexee359459d7

1023101131223 has 4 divisors (see below), whose sum is σ = 1023105352248. Its totient is φ = 1023096910200.

The previous prime is 1023101131159. The next prime is 1023101131301. The reversal of 1023101131223 is 3221311013201.

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 1023101131223 - 26 = 1023101131159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1023101131195 and 1023101131204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023104131223) 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, 1723253 + ... + 2239598.

It is an arithmetic number, because the mean of its divisors is an integer number (255776338062).

Almost surely, 21023101131223 is an apocalyptic number.

1023101131223 is a deficient number, since it is larger than the sum of its proper divisors (4221025).

1023101131223 is an equidigital number, since it uses as much as digits as its factorization.

1023101131223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4221024.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1023101131223 its reverse (3221311013201), we get a palindrome (4244412144424).

The spelling of 1023101131223 in words is "one trillion, twenty-three billion, one hundred one million, one hundred thirty-one thousand, two hundred twenty-three".

Divisors: 1 258173 3962851 1023101131223