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1201120210231 = 2399663775437
BaseRepresentation
bin10001011110101000010…
…101111110110100110111
311020211022010120200112021
4101132220111332310313
5124134343233211411
62315441554334011
7152530610222044
oct21365025766467
94224263520467
101201120210231
11423435055677
1217495088a307
138935a6c36b6
14421c52081cb
152139d214a71
hex117a857ed37

1201120210231 has 8 divisors (see below), whose sum is σ = 1201817865600. Its totient is φ = 1200422723808.

The previous prime is 1201120210201. The next prime is 1201120210261. The reversal of 1201120210231 is 1320120211021.

It is an interprime number because it is at equal distance from previous prime (1201120210201) and next prime (1201120210261).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1201120210231 is a prime.

It is a super-2 number, since 2×12011202102312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201120210201) 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, 15884445 + ... + 15959881.

It is an arithmetic number, because the mean of its divisors is an integer number (150227233200).

Almost surely, 21201120210231 is an apocalyptic number.

1201120210231 is a deficient number, since it is larger than the sum of its proper divisors (697655369).

1201120210231 is an equidigital number, since it uses as much as digits as its factorization.

1201120210231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84473.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1201120210231 its reverse (1320120211021), we get a palindrome (2521240421252).

The spelling of 1201120210231 in words is "one trillion, two hundred one billion, one hundred twenty million, two hundred ten thousand, two hundred thirty-one".

Divisors: 1 2399 6637 75437 15922163 180973363 500675369 1201120210231