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13022021202131 = 13199404742001
BaseRepresentation
bin1011110101111110110011…
…1100101011000011010011
31201002220010001021111121102
42331133230330223003103
53201323044411432011
643410122311215015
72512544552624024
oct275375474530323
951086101244542
1013022021202131
1141706765378a7
12156390867746b
13735c82021a36
143303aa924c4b
15178aecaa273b
hexbd7ecf2b0d3

13022021202131 has 4 divisors (see below), whose sum is σ = 13121425944264. Its totient is φ = 12922616460000.

The previous prime is 13022021202097. The next prime is 13022021202137. The reversal of 13022021202131 is 13120212022031.

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 13022021202131 - 222 = 13022017007827 is a prime.

It is a super-2 number, since 2×130220212021312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13022021202137) 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, 49702370870 + ... + 49702371131.

It is an arithmetic number, because the mean of its divisors is an integer number (3280356486066).

Almost surely, 213022021202131 is an apocalyptic number.

13022021202131 is a deficient number, since it is larger than the sum of its proper divisors (99404742133).

13022021202131 is an equidigital number, since it uses as much as digits as its factorization.

13022021202131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99404742132.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 13022021202131 its reverse (13120212022031), we get a palindrome (26142233224162).

The spelling of 13022021202131 in words is "thirteen trillion, twenty-two billion, twenty-one million, two hundred two thousand, one hundred thirty-one".

Divisors: 1 131 99404742001 13022021202131