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123030142301501 = 7331578971063001
BaseRepresentation
bin11011111110010100101111…
…111011011011010100111101
3121010121120022011002212201122
4123332110233323123110331
5112111211212412122001
61113355133410320325
734625430421604261
oct3376245773332475
9533546264085648
10123030142301501
1136223876a38166
12119700958890a5
135385900956726
1422549952540a1
15e3546a231b1b
hex6fe52fedb53d

123030142301501 has 8 divisors (see below), whose sum is σ = 123198883110264. Its totient is φ = 122861403936000.

The previous prime is 123030142301483. The next prime is 123030142301513. The reversal of 123030142301501 is 105103241030321.

It can be written as a sum of positive squares in 4 ways, for example, as 52494516996100 + 70535625305401 = 7245310^2 + 8398549^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-123030142301501 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 (123030142301581) 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, 115207001 + ... + 116270001.

It is an arithmetic number, because the mean of its divisors is an integer number (15399860388783).

Almost surely, 2123030142301501 is an apocalyptic number.

It is an amenable number.

123030142301501 is a deficient number, since it is larger than the sum of its proper divisors (168740808763).

123030142301501 is a wasteful number, since it uses less digits than its factorization.

123030142301501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221631.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 123030142301501 its reverse (105103241030321), we get a palindrome (228133383331822).

The spelling of 123030142301501 in words is "one hundred twenty-three trillion, thirty billion, one hundred forty-two million, three hundred one thousand, five hundred one".

Divisors: 1 733 157897 1063001 115738501 779179733 167844668897 123030142301501