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13031401111 = 232919537333
BaseRepresentation
bin11000010001011101…
…10110011010010111
31020122011212202200121
430020232312122113
5203142014313421
65553032052411
7640634040031
oct141056663227
936564782617
1013031401111
115587982593
122638234107
1312c8a47641
148b89c0c51
155140a5d41
hex308bb6697

13031401111 has 8 divisors (see below), whose sum is σ = 14066880480. Its totient is φ = 12034996512.

The previous prime is 13031401079. The next prime is 13031401127. The reversal of 13031401111 is 11110413031.

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 13031401111 - 25 = 13031401079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031401811) 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, 9768000 + ... + 9769333.

It is an arithmetic number, because the mean of its divisors is an integer number (1758360060).

Almost surely, 213031401111 is an apocalyptic number.

13031401111 is a deficient number, since it is larger than the sum of its proper divisors (1035479369).

13031401111 is a wasteful number, since it uses less digits than its factorization.

13031401111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19537385.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 13031401111 its reverse (11110413031), we get a palindrome (24141814142).

The spelling of 13031401111 in words is "thirteen billion, thirty-one million, four hundred one thousand, one hundred eleven".

Divisors: 1 23 29 667 19537333 449358659 566582657 13031401111