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120311131002031 = 435557503497081
BaseRepresentation
bin11011010110110000011110…
…001110011101010010101111
3120202222122001120122112221001
4123112300132032131102233
5111232134144014031111
61103514100502021131
734225122661105504
oct3326603616352257
9522878046575831
10120311131002031
1135375733a45042
12115b112a4177a7
1352193a235c7c8
14219d1386234ab
15dd987e12e1c1
hex6d6c1e39d4af

120311131002031 has 8 divisors (see below), whose sum is σ = 123131218397264. Its totient is φ = 117492050612160.

The previous prime is 120311131002011. The next prime is 120311131002053. The reversal of 120311131002031 is 130200131113021.

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

It is a cyclic number.

It is not a de Polignac number, because 120311131002031 - 29 = 120311131001519 is a prime.

It is a super-2 number, since 2×1203111310020312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120311131002011) 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, 251509590 + ... + 251987491.

It is an arithmetic number, because the mean of its divisors is an integer number (15391402299658).

Almost surely, 2120311131002031 is an apocalyptic number.

120311131002031 is a deficient number, since it is larger than the sum of its proper divisors (2820087395233).

120311131002031 is an equidigital number, since it uses as much as digits as its factorization.

120311131002031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503502681.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 120311131002031 its reverse (130200131113021), we get a palindrome (250511262115052).

The spelling of 120311131002031 in words is "one hundred twenty trillion, three hundred eleven billion, one hundred thirty-one million, two thousand, thirty-one".

Divisors: 1 43 5557 238951 503497081 21650374483 2797933279117 120311131002031