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103020222131 = 715914390309
BaseRepresentation
bin101111111110001111…
…0111101011010110011
3100211220122201112010122
41133330132331122303
53141441134102011
6115154332520455
710304636303561
oct1377436753263
9324818645118
10103020222131
113a766258752
1217b7132012b
13993a454528
144db420ca31
152a2e4753db
hex17fc7bd6b3

103020222131 has 4 divisors (see below), whose sum is σ = 103034619600. Its totient is φ = 103005824664.

The previous prime is 103020222127. The next prime is 103020222133. The reversal of 103020222131 is 131222020301.

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 103020222131 - 22 = 103020222127 is a prime.

It is a super-2 number, since 2×1030202221312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103020222133) 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, 7187996 + ... + 7202313.

It is an arithmetic number, because the mean of its divisors is an integer number (25758654900).

Almost surely, 2103020222131 is an apocalyptic number.

103020222131 is a deficient number, since it is larger than the sum of its proper divisors (14397469).

103020222131 is an equidigital number, since it uses as much as digits as its factorization.

103020222131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14397468.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 103020222131 its reverse (131222020301), we get a palindrome (234242242432).

The spelling of 103020222131 in words is "one hundred three billion, twenty million, two hundred twenty-two thousand, one hundred thirty-one".

Divisors: 1 7159 14390309 103020222131