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123031412412 = 22323538410679
BaseRepresentation
bin111001010010100111…
…1100101111010111100
3102202120021022022120020
41302211033211322330
54003432020144122
6132304142052140
711613555515316
oct1624517457274
9382507268506
10123031412412
11481a5030137
121ba16b7a050
13b7a924971c
145d51ba87b6
1533011a1c5c
hex1ca53e5ebc

123031412412 has 48 divisors (see below), whose sum is σ = 305206755840. Its totient is φ = 38487262528.

The previous prime is 123031412407. The next prime is 123031412431. The reversal of 123031412412 is 214214130321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4190712 + ... + 4219967.

It is an arithmetic number, because the mean of its divisors is an integer number (6358474080).

Almost surely, 2123031412412 is an apocalyptic number.

123031412412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123031412412 is an abundant number, since it is smaller than the sum of its proper divisors (182175343428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123031412412 is a wasteful number, since it uses less digits than its factorization.

123031412412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8410762 (or 8410760 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 123031412412 its reverse (214214130321), we get a palindrome (337245542733).

The spelling of 123031412412 in words is "one hundred twenty-three billion, thirty-one million, four hundred twelve thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 23 46 53 69 92 106 138 159 212 276 318 636 1219 2438 3657 4876 7314 14628 8410679 16821358 25232037 33642716 50464074 100928148 193445617 386891234 445765987 580336851 773782468 891531974 1160673702 1337297961 1783063948 2321347404 2674595922 5349191844 10252617701 20505235402 30757853103 41010470804 61515706206 123031412412