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331220131011023 = 9371531230888309
BaseRepresentation
bin100101101001111100011001…
…0010000000101100111001111
31121102202100001102101202220112
41023103320302100011213033
5321403202312014323043
63132240232205310235
7126523602421510502
oct11323706220054717
91542670042352815
10331220131011023
119659a73a079161
123119481b86537b
13112a7c029b73b7
145bb11d5b77139
152845be081c518
hex12d3e324059cf

331220131011023 has 8 divisors (see below), whose sum is σ = 331790195682960. Its totient is φ = 330650528120640.

The previous prime is 331220131011017. The next prime is 331220131011041. The reversal of 331220131011023 is 320110131022133.

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

It is a cyclic number.

It is not a de Polignac number, because 331220131011023 - 226 = 331220063902159 is a prime.

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 331220131011023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331220131011053) 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, 114009608 + ... + 116878701.

It is an arithmetic number, because the mean of its divisors is an integer number (41473774460370).

Almost surely, 2331220131011023 is an apocalyptic number.

331220131011023 is a deficient number, since it is larger than the sum of its proper divisors (570064671937).

331220131011023 is a wasteful number, since it uses less digits than its factorization.

331220131011023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230890777.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 331220131011023 its reverse (320110131022133), we get a palindrome (651330262033156).

The spelling of 331220131011023 in words is "three hundred thirty-one trillion, two hundred twenty billion, one hundred thirty-one million, eleven thousand, twenty-three".

Divisors: 1 937 1531 1434547 230888309 216342345533 353490001079 331220131011023