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12033312213 = 313308546467
BaseRepresentation
bin10110011010011110…
…11100010111010101
31011001121210121010010
423031033130113111
5144121011442323
65310015350433
7604124315616
oct131517342725
934047717103
1012033312213
11511554462a
1223b9b22419
13119a0292b0
1482220dc0d
154a6650c93
hex2cd3dc5d5

12033312213 has 8 divisors (see below), whose sum is σ = 17278602208. Its totient is φ = 7405115184.

The previous prime is 12033312209. The next prime is 12033312217. The reversal of 12033312213 is 31221333021.

It is an interprime number because it is at equal distance from previous prime (12033312209) and next prime (12033312217).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12033312213 - 22 = 12033312209 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 12033312213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12033312217) 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, 154273195 + ... + 154273272.

It is an arithmetic number, because the mean of its divisors is an integer number (2159825276).

Almost surely, 212033312213 is an apocalyptic number.

12033312213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12033312213 is a deficient number, since it is larger than the sum of its proper divisors (5245289995).

12033312213 is a wasteful number, since it uses less digits than its factorization.

12033312213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308546483.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12033312213 its reverse (31221333021), we get a palindrome (43254645234).

The spelling of 12033312213 in words is "twelve billion, thirty-three million, three hundred twelve thousand, two hundred thirteen".

Divisors: 1 3 13 39 308546467 925639401 4011104071 12033312213