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131032402230421 = 1913027122663061
BaseRepresentation
bin11101110010110001011011…
…110010011111110010010101
3122011221120112101221120021001
4131302301123302133302111
5114133313324432333141
61142403242104423301
736412531035652546
oct3562613362376225
9564846471846231
10131032402230421
113882959106244a
1212842b5a477b31
1358163c1802a23
142450005ad04cd
1510236c07a0a31
hex772c5bc9fc95

131032402230421 has 8 divisors (see below), whose sum is σ = 131722792869888. Its totient is φ = 130342056978000.

The previous prime is 131032402230403. The next prime is 131032402230427. The reversal of 131032402230421 is 124032204230131.

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 131032402230421 - 223 = 131032393841813 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131032402230421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131032402230427) 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, 5549770 + ... + 17113291.

It is an arithmetic number, because the mean of its divisors is an integer number (16465349108736).

Almost surely, 2131032402230421 is an apocalyptic number.

It is an amenable number.

131032402230421 is a deficient number, since it is larger than the sum of its proper divisors (690390639467).

131032402230421 is a wasteful number, since it uses less digits than its factorization.

131032402230421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22693523.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 131032402230421 its reverse (124032204230131), we get a palindrome (255064606460552).

The spelling of 131032402230421 in words is "one hundred thirty-one trillion, thirty-two billion, four hundred two million, two hundred thirty thousand, four hundred twenty-one".

Divisors: 1 191 30271 5781761 22663061 4328644651 686033519531 131032402230421