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20013232131203 = 731723159114257
BaseRepresentation
bin1001000110011101100011…
…00101111000110010000011
32121212020122120001102021012
410203032301211320302003
510110344044411144303
6110321541340351135
74133623356206603
oct443166145706203
977766576042235
1020013232131203
116416622881063
1222b2846b454ab
13b223167aca7c
144d2907770c03
1524a8cb88c5d8
hex1233b1978c83

20013232131203 has 8 divisors (see below), whose sum is σ = 20299160578608. Its totient is φ = 19727621915904.

The previous prime is 20013232131149. The next prime is 20013232131227. The reversal of 20013232131203 is 30213123231002.

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 20013232131203 - 226 = 20013165022339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20013232731203) 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, 79431350 + ... + 79682907.

It is an arithmetic number, because the mean of its divisors is an integer number (2537395072326).

Almost surely, 220013232131203 is an apocalyptic number.

20013232131203 is a deficient number, since it is larger than the sum of its proper divisors (285928447405).

20013232131203 is a wasteful number, since it uses less digits than its factorization.

20013232131203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159116053.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 20013232131203 its reverse (30213123231002), we get a palindrome (50226355362205).

The spelling of 20013232131203 in words is "twenty trillion, thirteen billion, two hundred thirty-two million, one hundred thirty-one thousand, two hundred three".

Divisors: 1 73 1723 125779 159114257 11615340761 274153864811 20013232131203