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21023132301 = 3215671149059
BaseRepresentation
bin10011100101000100…
…111000101010001101
32000021010201202220200
4103211010320222031
5321023410213201
613354034404113
71342654450623
oct234504705215
960233652820
1021023132301
118a09012506
1240a8730639
131ca0653b72
141036135513
158309bb386
hex4e5138a8d

21023132301 has 12 divisors (see below), whose sum is σ = 30368888160. Its totient is φ = 14014433160.

The previous prime is 21023132281. The next prime is 21023132311. The reversal of 21023132301 is 10323132012.

21023132301 is a `hidden beast` number, since 210 + 23 + 132 + 301 = 666.

It is not a de Polignac number, because 21023132301 - 211 = 21023130253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21023132311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66510 + ... + 215568.

It is an arithmetic number, because the mean of its divisors is an integer number (2530740680).

Almost surely, 221023132301 is an apocalyptic number.

It is an amenable number.

21023132301 is a deficient number, since it is larger than the sum of its proper divisors (9345755859).

21023132301 is a wasteful number, since it uses less digits than its factorization.

21023132301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164736 (or 164733 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21023132301 its reverse (10323132012), we get a palindrome (31346264313).

The spelling of 21023132301 in words is "twenty-one billion, twenty-three million, one hundred thirty-two thousand, three hundred one".

Divisors: 1 3 9 15671 47013 141039 149059 447177 1341531 2335903589 7007710767 21023132301