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3111111120131 = 72488691785857
BaseRepresentation
bin101101010001011100101…
…011000101010100000011
3102000102022200110000002122
4231101130223011110003
5401433023421321011
610341120312234455
7440525143123610
oct55213453052403
912012280400078
103111111120131
11a9a462136893
12422b5499ba2b
131974b82a2131
14aa8158b1507
1555dd916c3db
hex2d45cac5503

3111111120131 has 8 divisors (see below), whose sum is σ = 3555571843680. Its totient is φ = 2666654466048.

The previous prime is 3111111120121. The next prime is 3111111120181. The reversal of 3111111120131 is 1310211111113.

It is a happy number.

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-3111111120131 is a prime.

It is a super-2 number, since 2×31111111201312 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3111111120121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 849155 + ... + 2635011.

It is an arithmetic number, because the mean of its divisors is an integer number (444446480460).

Almost surely, 23111111120131 is an apocalyptic number.

3111111120131 is a deficient number, since it is larger than the sum of its proper divisors (444460723549).

3111111120131 is a wasteful number, since it uses less digits than its factorization.

3111111120131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034733.

The product of its (nonzero) digits is 18, while the sum is 17.

Adding to 3111111120131 its reverse (1310211111113), we get a palindrome (4421322231244).

The spelling of 3111111120131 in words is "three trillion, one hundred eleven billion, one hundred eleven million, one hundred twenty thousand, one hundred thirty-one".

Divisors: 1 7 248869 1742083 1785857 12500999 444444445733 3111111120131