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1031032130111 = 6761915247669
BaseRepresentation
bin11110000000011100100…
…11011100101000111111
310122120021101211222012022
433000032103130220333
5113343023211130421
62105352152430355
7134326636335404
oct17001623345077
93576241758168
101031032130111
11368292838615
121479a26a83bb
13762c243a4c9
1437c8b9a42ab
151bc45cbb7ab
hexf00e4dca3f

1031032130111 has 4 divisors (see below), whose sum is σ = 1031047445400. Its totient is φ = 1031016814824.

The previous prime is 1031032130021. The next prime is 1031032130123. The reversal of 1031032130111 is 1110312301301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1031032130111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1031032130111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031032130911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7556216 + ... + 7691453.

It is an arithmetic number, because the mean of its divisors is an integer number (257761861350).

Almost surely, 21031032130111 is an apocalyptic number.

1031032130111 is a deficient number, since it is larger than the sum of its proper divisors (15315289).

1031032130111 is an equidigital number, since it uses as much as digits as its factorization.

1031032130111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15315288.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 1031032130111 its reverse (1110312301301), we get a palindrome (2141344431412).

The spelling of 1031032130111 in words is "one trillion, thirty-one billion, thirty-two million, one hundred thirty thousand, one hundred eleven".

Divisors: 1 67619 15247669 1031032130111