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12020331000131 = 22353902829597
BaseRepresentation
bin1010111011101011001110…
…0011110011000101000011
31120120010120112102220212022
42232322303203303011003
53033420114214001011
641322021441552055
72350304002451246
oct256726343630503
946503515386768
1012020331000131
113914880531153
12142175464562b
1369268782a58c
142d7b03c2725d
1515ca22c708db
hexaeeb38f3143

12020331000131 has 4 divisors (see below), whose sum is σ = 12074233829952. Its totient is φ = 11966428170312.

The previous prime is 12020331000089. The next prime is 12020331000163. The reversal of 12020331000131 is 13100013302021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12020331000131 is a prime.

It is a super-2 number, since 2×120203310001312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12020331000631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26951414576 + ... + 26951415021.

It is an arithmetic number, because the mean of its divisors is an integer number (3018558457488).

Almost surely, 212020331000131 is an apocalyptic number.

12020331000131 is a deficient number, since it is larger than the sum of its proper divisors (53902829821).

12020331000131 is an equidigital number, since it uses as much as digits as its factorization.

12020331000131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53902829820.

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

Adding to 12020331000131 its reverse (13100013302021), we get a palindrome (25120344302152).

The spelling of 12020331000131 in words is "twelve trillion, twenty billion, three hundred thirty-one million, one hundred thirty-one", and thus it is an aban number.

Divisors: 1 223 53902829597 12020331000131