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131020011132 = 22331352204331
BaseRepresentation
bin111101000000101100…
…1101011011001111100
3110112012000021011211220
41322001121223121330
54121312110324012
6140104553313340
712315540501513
oct1720131533174
9415160234756
10131020011132
115062442063a
1221486405850
13c4802ca20a
1464acb4567a
15361c69908c
hex1e8166b67c

131020011132 has 24 divisors (see below), whose sum is σ = 315575081472. Its totient is φ = 42264519600.

The previous prime is 131020011127. The next prime is 131020011169. The reversal of 131020011132 is 231110020131.

It is a happy number.

It is a congruent number.

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, 176101794 + ... + 176102537.

It is an arithmetic number, because the mean of its divisors is an integer number (13148961728).

Almost surely, 2131020011132 is an apocalyptic number.

131020011132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131020011132 is an abundant number, since it is smaller than the sum of its proper divisors (184555070340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131020011132 is a wasteful number, since it uses less digits than its factorization.

131020011132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352204369 (or 352204367 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 131020011132 its reverse (231110020131), we get a palindrome (362130031263).

The spelling of 131020011132 in words is "one hundred thirty-one billion, twenty million, eleven thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 372 352204331 704408662 1056612993 1408817324 2113225986 4226451972 10918334261 21836668522 32755002783 43673337044 65510005566 131020011132