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101223221431 = 1725912298073
BaseRepresentation
bin101111001000101011…
…1111100100010110111
3100200021102100102121011
41132101113330202313
53124301121041211
6114300140533051
710212256120513
oct1362127744267
9320242312534
10101223221431
1139a23962502
121774b551187
1397120746c7
144c836b7143
152976810921
hex17915fc8b7

101223221431 has 8 divisors (see below), whose sum is σ = 107218940544. Its totient is φ = 95232103680.

The previous prime is 101223221399. The next prime is 101223221441. The reversal of 101223221431 is 134122322101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101223221431 - 25 = 101223221399 is a prime.

It is a super-2 number, since 2×1012232214312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101223221441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1104990 + ... + 1193083.

It is an arithmetic number, because the mean of its divisors is an integer number (13402367568).

Almost surely, 2101223221431 is an apocalyptic number.

101223221431 is a deficient number, since it is larger than the sum of its proper divisors (5995719113).

101223221431 is a wasteful number, since it uses less digits than its factorization.

101223221431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2300681.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 101223221431 its reverse (134122322101), we get a palindrome (235345543532).

The spelling of 101223221431 in words is "one hundred one billion, two hundred twenty-three million, two hundred twenty-one thousand, four hundred thirty-one".

Divisors: 1 17 2591 44047 2298073 39067241 5954307143 101223221431