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131022120201 = 37311145313807
BaseRepresentation
bin111101000000110000…
…1101110010100001001
3110112012011020022221120
41322001201232110021
54121313130321301
6140105110425453
712315564434430
oct1720141562411
9415164208846
10131022120201
1150625631175
1221487062289
13c48088819b
1464ad134117
15361c963e36
hex1e8186e509

131022120201 has 32 divisors (see below), whose sum is σ = 200447090688. Its totient is φ = 74572280640.

The previous prime is 131022120191. The next prime is 131022120209. The reversal of 131022120201 is 102021220131.

It is not a de Polignac number, because 131022120201 - 229 = 130485249289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131022120209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9482640 + ... + 9496446.

It is an arithmetic number, because the mean of its divisors is an integer number (6263971584).

Almost surely, 2131022120201 is an apocalyptic number.

It is an amenable number.

131022120201 is a deficient number, since it is larger than the sum of its proper divisors (69424970487).

131022120201 is a wasteful number, since it uses less digits than its factorization.

131022120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15581.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 131022120201 its reverse (102021220131), we get a palindrome (233043340332).

The spelling of 131022120201 in words is "one hundred thirty-one billion, twenty-two million, one hundred twenty thousand, two hundred one".

Divisors: 1 3 7 21 311 933 1453 2177 4359 6531 10171 13807 30513 41421 96649 289947 451883 1355649 3163181 4293977 9489543 12881931 20061571 30057839 60184713 90173517 140430997 421292991 6239148581 18717445743 43674040067 131022120201