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133010133221 = 719001447603
BaseRepresentation
bin111101111100000000…
…1011001000011100101
3110201022201000212010102
41323320001121003211
54134401043230341
6141034244433445
712416054322650
oct1737001310345
9421281025112
10133010133221
1151455830839
12219409a8885
13c7096c6454
14661b18c897
1536d7259c9b
hex1ef80590e5

133010133221 has 4 divisors (see below), whose sum is σ = 152011580832. Its totient is φ = 114008685612.

The previous prime is 133010133209. The next prime is 133010133247. The reversal of 133010133221 is 122331010331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122331010331 = 432844907217.

It is a cyclic number.

It is not a de Polignac number, because 133010133221 - 222 = 133005938917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133010133193 and 133010133202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133010133271) 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, 9500723795 + ... + 9500723808.

It is an arithmetic number, because the mean of its divisors is an integer number (38002895208).

Almost surely, 2133010133221 is an apocalyptic number.

It is an amenable number.

133010133221 is a deficient number, since it is larger than the sum of its proper divisors (19001447611).

133010133221 is an equidigital number, since it uses as much as digits as its factorization.

133010133221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19001447610.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 133010133221 its reverse (122331010331), we get a palindrome (255341143552).

The spelling of 133010133221 in words is "one hundred thirty-three billion, ten million, one hundred thirty-three thousand, two hundred twenty-one".

Divisors: 1 7 19001447603 133010133221