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2131311021132 = 223431412086431
BaseRepresentation
bin11111000000111100000…
…010010100110001001100
321112202021201200212111010
4133000330002110301030
5234404411110134012
64311035531525220
7306660605524326
oct37007402246114
97482251625433
102131311021132
1175197a565557
122a508b8b9810
13125c9bc32447
1475228108616
153a690eabc3c
hex1f03c094c4c

2131311021132 has 24 divisors (see below), whose sum is σ = 4984597481472. Its totient is φ = 708788659600.

The previous prime is 2131311021101. The next prime is 2131311021143. The reversal of 2131311021132 is 2311201131312.

It is a super-2 number, since 2×21313110211322 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2131311021099 and 2131311021108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206038044 + ... + 206048387.

It is an arithmetic number, because the mean of its divisors is an integer number (207691561728).

Almost surely, 22131311021132 is an apocalyptic number.

It is an amenable number.

2131311021132 is an abundant number, since it is smaller than the sum of its proper divisors (2853286460340).

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

2131311021132 is a wasteful number, since it uses less digits than its factorization.

2131311021132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412086869 (or 412086867 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 2131311021132 its reverse (2311201131312), we get a palindrome (4442512152444).

The spelling of 2131311021132 in words is "two trillion, one hundred thirty-one billion, three hundred eleven million, twenty-one thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 431 862 1293 1724 2586 5172 412086431 824172862 1236259293 1648345724 2472518586 4945037172 177609251761 355218503522 532827755283 710437007044 1065655510566 2131311021132