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1210110231011 = 11110010021001
BaseRepresentation
bin10001100111000000001…
…100001100000111100011
311021200111122220001121212
4101213000030030013203
5124311301204343021
62323530021540335
7153266442151133
oct21470014140743
94250448801555
101210110231011
11427228750310
1217663b5746ab
138a16108b716
14427d9182ac3
15217275be85b
hex119c030c1e3

1210110231011 has 4 divisors (see below), whose sum is σ = 1320120252024. Its totient is φ = 1100100210000.

The previous prime is 1210110230981. The next prime is 1210110231013. The reversal of 1210110231011 is 1101320110121.

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

It is not a de Polignac number, because 1210110231011 - 214 = 1210110214627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210110231013) 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, 55005010490 + ... + 55005010511.

It is an arithmetic number, because the mean of its divisors is an integer number (330030063006).

Almost surely, 21210110231011 is an apocalyptic number.

1210110231011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1210110231011 is a deficient number, since it is larger than the sum of its proper divisors (110010021013).

1210110231011 is a wasteful number, since it uses less digits than its factorization.

1210110231011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110010021012.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1210110231011 its reverse (1101320110121), we get a palindrome (2311430341132).

The spelling of 1210110231011 in words is "one trillion, two hundred ten billion, one hundred ten million, two hundred thirty-one thousand, eleven".

Divisors: 1 11 110010021001 1210110231011