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123013020030231 = 341986699766033
BaseRepresentation
bin11011111110000100110011…
…010111001001010100010111
3121010112221002212112101011110
4123332010303113021110113
5112110421131111431411
61113343222400510103
734624253211652122
oct3376046327112427
9533487085471143
10123013020030231
113621758a956351
12119688b761b333
135384102522676
142253c0d2273b9
15e34cb6e562a6
hex6fe1335c9517

123013020030231 has 8 divisors (see below), whose sum is σ = 164017415899120. Its totient is φ = 82008652090752.

The previous prime is 123013020030179. The next prime is 123013020030247. The reversal of 123013020030231 is 132030020310321.

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

It is not a de Polignac number, because 123013020030231 - 29 = 123013020029719 is a prime.

It is a super-2 number, since 2×1230130200302312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123013020030198 and 123013020030207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123013020030331) 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, 7712991 + ... + 17479023.

It is an arithmetic number, because the mean of its divisors is an integer number (20502176987390).

Almost surely, 2123013020030231 is an apocalyptic number.

123013020030231 is a deficient number, since it is larger than the sum of its proper divisors (41004395868889).

123013020030231 is an equidigital number, since it uses as much as digits as its factorization.

123013020030231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13964705.

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

Adding to 123013020030231 its reverse (132030020310321), we get a palindrome (255043040340552).

The spelling of 123013020030231 in words is "one hundred twenty-three trillion, thirteen billion, twenty million, thirty thousand, two hundred thirty-one".

Divisors: 1 3 4198669 9766033 12596007 29298099 41004340010077 123013020030231