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102031122103 = 882111566843
BaseRepresentation
bin101111100000110000…
…1110101111010110111
3100202100201120000222021
41133001201311322313
53132424431401403
6114512241014011
710241266141201
oct1370141657267
9322321500867
10102031122103
113a2a89aa209
1217936024307
139810562741
144d1cadb771
1529c26e88bd
hex17c1875eb7

102031122103 has 4 divisors (see below), whose sum is σ = 102042697768. Its totient is φ = 102019546440.

The previous prime is 102031122097. The next prime is 102031122107. The reversal of 102031122103 is 301221130201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301221130201 = 547550678483.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102031122103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102031122107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5774601 + ... + 5792242.

It is an arithmetic number, because the mean of its divisors is an integer number (25510674442).

Almost surely, 2102031122103 is an apocalyptic number.

102031122103 is a deficient number, since it is larger than the sum of its proper divisors (11575665).

102031122103 is an equidigital number, since it uses as much as digits as its factorization.

102031122103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11575664.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 102031122103 its reverse (301221130201), we get a palindrome (403252252304).

The spelling of 102031122103 in words is "one hundred two billion, thirty-one million, one hundred twenty-two thousand, one hundred three".

Divisors: 1 8821 11566843 102031122103