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11312130132 = 22321931162727
BaseRepresentation
bin10101000100100000…
…10110100001010100
31002012100202202021200
422202100112201110
5141131401131012
65110254112500
7550216343142
oct124220264124
932170682250
1011312130132
114885447886
1222384ab730
1310b37b1734
14794520592
154631973dc
hex2a2416854

11312130132 has 36 divisors (see below), whose sum is σ = 28609535136. Its totient is φ = 3768734160.

The previous prime is 11312130127. The next prime is 11312130161. The reversal of 11312130132 is 23103121311.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11848 + ... + 150879.

Almost surely, 211312130132 is an apocalyptic number.

11312130132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11312130132 is an abundant number, since it is smaller than the sum of its proper divisors (17297405004).

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

11312130132 is a wasteful number, since it uses less digits than its factorization.

11312130132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164668 (or 164663 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11312130132 its reverse (23103121311), we get a palindrome (34415251443).

The spelling of 11312130132 in words is "eleven billion, three hundred twelve million, one hundred thirty thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 1931 3862 5793 7724 11586 17379 23172 34758 69516 162727 325454 488181 650908 976362 1464543 1952724 2929086 5858172 314225837 628451674 942677511 1256903348 1885355022 2828032533 3770710044 5656065066 11312130132