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11312220002 = 2171069311237
BaseRepresentation
bin10101000100100001…
…01100011101100010
31002012100221022120012
422202100230131202
5141131412020002
65110300044522
7550220166146
oct124220543542
932170838505
1011312220002
1148854a9356
122238533742
1310b3813605
14794545226
154631b3d52
hex2a242c762

11312220002 has 16 divisors (see below), whose sum is σ = 17983331640. Its totient is φ = 5318400768.

The previous prime is 11312220001. The next prime is 11312220011. The reversal of 11312220002 is 20002221311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9541577761 + 1770642241 = 97681^2 + 42079^2 .

It is not an unprimeable number, because it can be changed into a prime (11312220001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119273 + ... + 191964.

Almost surely, 211312220002 is an apocalyptic number.

11312220002 is a deficient number, since it is larger than the sum of its proper divisors (6671111638).

11312220002 is a wasteful number, since it uses less digits than its factorization.

11312220002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312325.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 11312220002 its reverse (20002221311), we get a palindrome (31314441313).

The spelling of 11312220002 in words is "eleven billion, three hundred twelve million, two hundred twenty thousand, two".

Divisors: 1 2 17 34 1069 2138 18173 36346 311237 622474 5291029 10582058 332712353 665424706 5656110001 11312220002