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12311521202 = 2105110695479
BaseRepresentation
bin10110111011101001…
…01110011110110010
31011210000022002002202
423131310232132302
5200203222134302
65353354343202
7614043126551
oct133564563662
934700262082
1012311521202
115248595112
12247712ab02
1312128676b6
1484b14dd98
154c0ca8202
hex2ddd2e7b2

12311521202 has 16 divisors (see below), whose sum is σ = 18505521600. Its totient is φ = 6143029200.

The previous prime is 12311521153. The next prime is 12311521241. The reversal of 12311521202 is 20212511321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2244299 + ... + 2249777.

It is an arithmetic number, because the mean of its divisors is an integer number (1156595100).

Almost surely, 212311521202 is an apocalyptic number.

12311521202 is a deficient number, since it is larger than the sum of its proper divisors (6194000398).

12311521202 is a wasteful number, since it uses less digits than its factorization.

12311521202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7601.

The product of its (nonzero) digits is 240, while the sum is 20.

The spelling of 12311521202 in words is "twelve billion, three hundred eleven million, five hundred twenty-one thousand, two hundred two".

Divisors: 1 2 1051 1069 2102 2138 5479 10958 1123519 2247038 5758429 5857051 11516858 11714102 6155760601 12311521202