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122013310331 = 1159238378893
BaseRepresentation
bin111000110100010001…
…1110101110101111011
3102122221022120101001202
41301220203311311323
53444340401412311
6132015132404415
711546414011553
oct1615043656573
9378838511052
10122013310331
1147822372a60
121b79201670b
13b676341c63
145c968a8163
153291ae6e3b
hex1c688f5d7b

122013310331 has 16 divisors (see below), whose sum is σ = 135419973120. Its totient is φ = 108994031520.

The previous prime is 122013310327. The next prime is 122013310481. The reversal of 122013310331 is 133013310221.

It is not a de Polignac number, because 122013310331 - 22 = 122013310327 is a prime.

It is a super-2 number, since 2×1220133103312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122013310301) 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, 1507121 + ... + 1586013.

It is an arithmetic number, because the mean of its divisors is an integer number (8463748320).

Almost surely, 2122013310331 is an apocalyptic number.

122013310331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122013310331 is a deficient number, since it is larger than the sum of its proper divisors (13406662789).

122013310331 is a wasteful number, since it uses less digits than its factorization.

122013310331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81346.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 122013310331 its reverse (133013310221), we get a palindrome (255026620552).

The spelling of 122013310331 in words is "one hundred twenty-two billion, thirteen million, three hundred ten thousand, three hundred thirty-one".

Divisors: 1 11 59 649 2383 26213 78893 140597 867823 1546567 4654687 51201557 188002019 2068022209 11092119121 122013310331