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1030120232111 = 7913039496609
BaseRepresentation
bin11101111110101111111…
…00110101010010101111
310122110220211221202022022
432333113330311102233
5113334141234411421
62105121455340355
7134265224333555
oct16772774652257
93573824852268
101030120232111
1136796501a103
121477892216bb
13761a85393a9
1437c0282bbd5
151bbe0bde7ab
hexefd7f354af

1030120232111 has 4 divisors (see below), whose sum is σ = 1043159728800. Its totient is φ = 1017080735424.

The previous prime is 1030120232101. The next prime is 1030120232143. The reversal of 1030120232111 is 1112320210301.

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

It is a cyclic number.

It is not a de Polignac number, because 1030120232111 - 230 = 1029046490287 is a prime.

It is a super-2 number, since 2×10301202321112 (a number of 25 digits) contains 22 as substring.

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 1030120232111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030120232101) 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, 6519748226 + ... + 6519748383.

It is an arithmetic number, because the mean of its divisors is an integer number (260789932200).

Almost surely, 21030120232111 is an apocalyptic number.

1030120232111 is a deficient number, since it is larger than the sum of its proper divisors (13039496689).

1030120232111 is an equidigital number, since it uses as much as digits as its factorization.

1030120232111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13039496688.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1030120232111 its reverse (1112320210301), we get a palindrome (2142440442412).

The spelling of 1030120232111 in words is "one trillion, thirty billion, one hundred twenty million, two hundred thirty-two thousand, one hundred eleven".

Divisors: 1 79 13039496609 1030120232111