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120231211233 = 3737783151531
BaseRepresentation
bin110111111111001010…
…1101011000011100001
3102111100010020100200110
41233332111223003201
53432213142224413
6131122232041533
711454304301430
oct1577625530341
9374303210613
10120231211233
1146a98425591
121b3752332a9
13b45107ba53
145b67d31117
1531da4278c3
hex1bfe56b0e1

120231211233 has 16 divisors (see below), whose sum is σ = 183215522816. Its totient is φ = 68701277520.

The previous prime is 120231211229. The next prime is 120231211307. The reversal of 120231211233 is 332112132021.

It is not a de Polignac number, because 120231211233 - 22 = 120231211229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120231215233) 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, 717678 + ... + 869208.

It is an arithmetic number, because the mean of its divisors is an integer number (11450970176).

Almost surely, 2120231211233 is an apocalyptic number.

It is an amenable number.

120231211233 is a deficient number, since it is larger than the sum of its proper divisors (62984311583).

120231211233 is a wasteful number, since it uses less digits than its factorization.

120231211233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189324.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 120231211233 its reverse (332112132021), we get a palindrome (452343343254).

The spelling of 120231211233 in words is "one hundred twenty billion, two hundred thirty-one million, two hundred eleven thousand, two hundred thirty-three".

Divisors: 1 3 7 21 37783 113349 151531 264481 454593 793443 1060717 3182151 5725295773 17175887319 40077070411 120231211233