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331102120031 = 3191535119391
BaseRepresentation
bin1001101000101110011…
…10010110100001011111
31011122122002001102120122
410310113032112201133
520411044120320111
6412034535305155
732631006404204
oct4642716264137
91148562042518
10331102120031
11118468573431
125420551b1bb
13252b8637627
141204dabbcab
15892ce3bcdb
hex4d1739685f

331102120031 has 8 divisors (see below), whose sum is σ = 331284860928. Its totient is φ = 330919435000.

The previous prime is 331102120003. The next prime is 331102120033. The reversal of 331102120031 is 130021201133.

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-331102120031 is a prime.

It is a super-2 number, since 2×3311021200312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331102119991 and 331102120009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331102120033) 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, 17065346 + ... + 17084736.

It is an arithmetic number, because the mean of its divisors is an integer number (41410607616).

Almost surely, 2331102120031 is an apocalyptic number.

331102120031 is a deficient number, since it is larger than the sum of its proper divisors (182740897).

331102120031 is a wasteful number, since it uses less digits than its factorization.

331102120031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27933.

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

Adding to 331102120031 its reverse (130021201133), we get a palindrome (461123321164).

The spelling of 331102120031 in words is "three hundred thirty-one billion, one hundred two million, one hundred twenty thousand, thirty-one".

Divisors: 1 3191 5351 19391 17075041 61876681 103761241 331102120031