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10031111201 = 50319942567
BaseRepresentation
bin10010101011110011…
…01001110000100001
3221220002022020200002
421111321221300201
5131020431024301
64335213305345
7503403016106
oct112571516041
927802266602
1010031111201
114288334351
121b3b495255
13c3b291177
146b2340aad
153da9a616b
hex255e69c21

10031111201 has 4 divisors (see below), whose sum is σ = 10051054272. Its totient is φ = 10011168132.

The previous prime is 10031111143. The next prime is 10031111203. The reversal of 10031111201 is 10211113001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10211113001 = 82191242379.

It is a cyclic number.

It is not a de Polignac number, because 10031111201 - 226 = 9964002337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10031111203) 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, 9970781 + ... + 9971786.

It is an arithmetic number, because the mean of its divisors is an integer number (2512763568).

Almost surely, 210031111201 is an apocalyptic number.

It is an amenable number.

10031111201 is a deficient number, since it is larger than the sum of its proper divisors (19943071).

10031111201 is an equidigital number, since it uses as much as digits as its factorization.

10031111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19943070.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 10031111201 its reverse (10211113001), we get a palindrome (20242224202).

The spelling of 10031111201 in words is "ten billion, thirty-one million, one hundred eleven thousand, two hundred one".

Divisors: 1 503 19942567 10031111201