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20125232301 = 361157700471
BaseRepresentation
bin10010101111100011…
…101010110010101101
31220221120011201200010
4102233203222302231
5312204024413201
613125001323433
71311502436436
oct225743526255
956846151603
1020125232301
118598194999
123a97a96579
131b896142a5
14d8cba448d
157cbc56bd6
hex4af8eacad

20125232301 has 16 divisors (see below), whose sum is σ = 27447294848. Its totient is φ = 13112798400.

The previous prime is 20125232299. The next prime is 20125232353. The reversal of 20125232301 is 10323252102.

It is not a de Polignac number, because 20125232301 - 21 = 20125232299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20125232381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321505 + ... + 378966.

It is an arithmetic number, because the mean of its divisors is an integer number (1715455928).

Almost surely, 220125232301 is an apocalyptic number.

It is an amenable number.

20125232301 is a deficient number, since it is larger than the sum of its proper divisors (7322062547).

20125232301 is a wasteful number, since it uses less digits than its factorization.

20125232301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700692.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 20125232301 its reverse (10323252102), we get a palindrome (30448484403).

The spelling of 20125232301 in words is "twenty billion, one hundred twenty-five million, two hundred thirty-two thousand, three hundred one".

Divisors: 1 3 61 157 183 471 9577 28731 700471 2101413 42728731 109973947 128186193 329921841 6708410767 20125232301