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12020120101031 = 74057423258569
BaseRepresentation
bin1010111011101010011011…
…1111010010000010100111
31120120010000211121010200112
42232322212333102002213
53033414201221213111
641321544505403235
72350265532031130
oct256724677220247
946503024533615
1012020120101031
113914782484579
1214216b5a9951b
13692652c28403
142d7ac3c08c87
1515ca0e4b1e8b
hexaeea6fd20a7

12020120101031 has 8 divisors (see below), whose sum is σ = 13740666216480. Its totient is φ = 10300420510848.

The previous prime is 12020120101019. The next prime is 12020120101039. The reversal of 12020120101031 is 13010102102021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12020120101031 is a prime.

It is a super-2 number, since 2×120201201010312 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12020120100997 and 12020120101015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020120101039) 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, 211600886 + ... + 211657683.

It is an arithmetic number, because the mean of its divisors is an integer number (1717583277060).

Almost surely, 212020120101031 is an apocalyptic number.

12020120101031 is a deficient number, since it is larger than the sum of its proper divisors (1720546115449).

12020120101031 is an equidigital number, since it uses as much as digits as its factorization.

12020120101031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423262633.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12020120101031 its reverse (13010102102021), we get a palindrome (25030222203052).

The spelling of 12020120101031 in words is "twelve trillion, twenty billion, one hundred twenty million, one hundred one thousand, thirty-one".

Divisors: 1 7 4057 28399 423258569 2962809983 1717160014433 12020120101031