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3031203412321 = 72218191283519
BaseRepresentation
bin101100000111000001110…
…011010111100101100001
3101201210001202222212011221
4230013001303113211201
5344130401033143241
610240303212535041
7431666021612500
oct54070163274541
911653052885157
103031203412321
11a69587337247
1240b573a81481
1318cac23126a6
14a69d50bc837
1553cadd2e5d1
hex2c1c1cd7961

3031203412321 has 12 divisors (see below), whose sum is σ = 3526122362880. Its totient is φ = 2598153281640.

The previous prime is 3031203412301. The next prime is 3031203412331. The reversal of 3031203412321 is 1232143021303.

It is not a de Polignac number, because 3031203412321 - 29 = 3031203411809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3031203412301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10549600 + ... + 10833118.

It is an arithmetic number, because the mean of its divisors is an integer number (293843530240).

Almost surely, 23031203412321 is an apocalyptic number.

It is an amenable number.

3031203412321 is a deficient number, since it is larger than the sum of its proper divisors (494918950559).

3031203412321 is a wasteful number, since it uses less digits than its factorization.

3031203412321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501724 (or 501717 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 3031203412321 its reverse (1232143021303), we get a palindrome (4263346433624).

The spelling of 3031203412321 in words is "three trillion, thirty-one billion, two hundred three million, four hundred twelve thousand, three hundred twenty-one".

Divisors: 1 7 49 218191 283519 1527337 1984633 10691359 13892431 61861294129 433029058903 3031203412321