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231002103120113 = 1322067380523637
BaseRepresentation
bin110100100001100001011110…
…010011001000000011110001
31010021220120210202010210222002
4310201201132103020003301
5220234214301344320423
62135144522352223345
766441231314003423
oct6441413623100361
91107816722123862
10231002103120113
1167671494aa9596
1221aa9908b3ab55
139bb8535607a20
1441087c0876813
151ba8d65061228
hexd2185e4c80f1

231002103120113 has 8 divisors (see below), whose sum is σ = 248772626088168. Its totient is φ = 213231741640704.

The previous prime is 231002103120083. The next prime is 231002103120119. The reversal of 231002103120113 is 311021301200132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16602430353664 + 214399672766449 = 4074608^2 + 14642393^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 231002103120113 - 212 = 231002103116017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231002103120119) 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, 37393070 + ... + 43130567.

It is an arithmetic number, because the mean of its divisors is an integer number (31096578261021).

Almost surely, 2231002103120113 is an apocalyptic number.

It is an amenable number.

231002103120113 is a deficient number, since it is larger than the sum of its proper divisors (17770522968055).

231002103120113 is a wasteful number, since it uses less digits than its factorization.

231002103120113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80744323.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 231002103120113 its reverse (311021301200132), we get a palindrome (542023404320245).

The spelling of 231002103120113 in words is "two hundred thirty-one trillion, two billion, one hundred three million, one hundred twenty thousand, one hundred thirteen".

Divisors: 1 13 220673 2868749 80523637 1046807281 17769392547701 231002103120113