Search a number
-
+
10203201312131 = 79156418257429
BaseRepresentation
bin1001010001111001111000…
…1100001001010110000011
31100010102020122100102222202
42110132132030021112003
52314132124013442011
633411141434223415
72102104561114652
oct224363614112603
940112218312882
1010203201312131
113284176164423
121189547584b6b
13590208785519
14273ba245b199
1512a61e47423b
hex9479e309583

10203201312131 has 8 divisors (see below), whose sum is σ = 10333017604800. Its totient is φ = 10073401565760.

The previous prime is 10203201312113. The next prime is 10203201312133. The reversal of 10203201312131 is 13121310230201.

It is a happy number.

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-10203201312131 is a prime.

It is a super-2 number, since 2×102032013121312 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10203201312133) 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, 2893076 + ... + 5364353.

It is an arithmetic number, because the mean of its divisors is an integer number (1291627200600).

Almost surely, 210203201312131 is an apocalyptic number.

10203201312131 is a deficient number, since it is larger than the sum of its proper divisors (129816292669).

10203201312131 is an equidigital number, since it uses as much as digits as its factorization.

10203201312131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8273149.

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

Adding to 10203201312131 its reverse (13121310230201), we get a palindrome (23324511542332).

The spelling of 10203201312131 in words is "ten trillion, two hundred three billion, two hundred one million, three hundred twelve thousand, one hundred thirty-one".

Divisors: 1 79 15641 1235639 8257429 652336891 129154446989 10203201312131