Search a number
-
+
1201031311210 = 25791520292799
BaseRepresentation
bin10001011110100011000…
…010110110111101101010
311020211001221022010222221
4101132203002312331222
5124134203003424320
62315425101104254
7152525450463163
oct21364302667552
94224057263887
101201031311210
11423399956505
12174926b5808a
1389345168923
14421b74a676a
15213955043aa
hex117a30b6f6a

1201031311210 has 16 divisors (see below), whose sum is σ = 2189221632000. Its totient is φ = 474331352976.

The previous prime is 1201031311199. The next prime is 1201031311217. The reversal of 1201031311210 is 121131301021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1201031311217) 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, 760145610 + ... + 760147189.

It is an arithmetic number, because the mean of its divisors is an integer number (136826352000).

Almost surely, 21201031311210 is an apocalyptic number.

1201031311210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201031311210 is a deficient number, since it is larger than the sum of its proper divisors (988190320790).

1201031311210 is a wasteful number, since it uses less digits than its factorization.

1201031311210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520292885.

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

Adding to 1201031311210 its reverse (121131301021), we get a palindrome (1322162612231).

The spelling of 1201031311210 in words is "one trillion, two hundred one billion, thirty-one million, three hundred eleven thousand, two hundred ten".

Divisors: 1 2 5 10 79 158 395 790 1520292799 3040585598 7601463995 15202927990 120103131121 240206262242 600515655605 1201031311210