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31102303000211 = 312241134292611
BaseRepresentation
bin1110001001001100100011…
…01110001101011010010011
311002010100110222021001120222
413010212101232031122103
513034040004032001321
6150052111210023255
76360032030322122
oct704462156153223
9132110428231528
1031102303000211
119a0145a232203
1235a3a02417b2b
131447c1c3a0131
14797506663ab9
1538e097a403ab
hex1c4991b8d693

31102303000211 has 12 divisors (see below), whose sum is σ = 32271320419272. Its totient is φ = 29974110552000.

The previous prime is 31102303000207. The next prime is 31102303000313. The reversal of 31102303000211 is 11200030320113.

It is not a de Polignac number, because 31102303000211 - 22 = 31102303000207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31102303000211.

It is not an unprimeable number, because it can be changed into a prime (31102303000411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66914705 + ... + 67377906.

It is an arithmetic number, because the mean of its divisors is an integer number (2689276701606).

Almost surely, 231102303000211 is an apocalyptic number.

31102303000211 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

31102303000211 is a deficient number, since it is larger than the sum of its proper divisors (1169017419061).

31102303000211 is a wasteful number, since it uses less digits than its factorization.

31102303000211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134292914 (or 134292883 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31102303000211 its reverse (11200030320113), we get a palindrome (42302333320324).

The spelling of 31102303000211 in words is "thirty-one trillion, one hundred two billion, three hundred three million, two hundred eleven", and thus it is an aban number.

Divisors: 1 31 241 961 7471 231601 134292611 4163070941 32364519251 129055199171 1003300096781 31102303000211