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230331123021 = 310913918127997
BaseRepresentation
bin1101011010000011001…
…1100000010101001101
3211000112011122101021010
43112200303200111031
512233204231414041
6253451311155433
722432551146046
oct3264063402515
9730464571233
10230331123021
1189756a0691a
1238781515b79
131894918b24c
14b2104c18cd
155ed11a8a16
hex35a0ce054d

230331123021 has 32 divisors (see below), whose sum is σ = 313891177600. Its totient is φ = 150210858240.

The previous prime is 230331123017. The next prime is 230331123049. The reversal of 230331123021 is 120321133032.

It is not a de Polignac number, because 230331123021 - 22 = 230331123017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230331123221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8212995 + ... + 8240991.

It is an arithmetic number, because the mean of its divisors is an integer number (9809099300).

Almost surely, 2230331123021 is an apocalyptic number.

It is an amenable number.

230331123021 is a deficient number, since it is larger than the sum of its proper divisors (83560054579).

230331123021 is a wasteful number, since it uses less digits than its factorization.

230331123021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28429.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 230331123021 its reverse (120321133032), we get a palindrome (350652256053).

The spelling of 230331123021 in words is "two hundred thirty billion, three hundred thirty-one million, one hundred twenty-three thousand, twenty-one".

Divisors: 1 3 109 139 181 327 417 543 15151 19729 25159 27997 45453 59187 75477 83991 2742331 3051673 3891583 5067457 8226993 9155019 11674749 15202371 424182547 552352813 704376523 1272547641 1657058439 2113129569 76777041007 230331123021