Search a number
-
+
10231020121131 = 33479918135489
BaseRepresentation
bin1001010011100001100001…
…0100011110110000101011
31100020002001101100100211000
42110320120110132300223
52320111112122334011
633432022112010043
72104111134103245
oct224703024366053
940202041310730
1010231020121131
113294a51155367
121192a0bb30923
13592a1cca3254
14275280d23095
1512b1eb849356
hex94e1851ec2b

10231020121131 has 32 divisors (see below), whose sum is σ = 15495179673600. Its totient is φ = 6668822223360.

The previous prime is 10231020121111. The next prime is 10231020121141. The reversal of 10231020121131 is 13112102013201.

10231020121131 is a `hidden beast` number, since 1 + 0 + 2 + 310 + 201 + 21 + 131 = 666.

It is not a de Polignac number, because 10231020121131 - 26 = 10231020121067 is a prime.

It is a super-2 number, since 2×102310201211312 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10231020121111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2810166 + ... + 5325323.

It is an arithmetic number, because the mean of its divisors is an integer number (484224364800).

Almost surely, 210231020121131 is an apocalyptic number.

10231020121131 is a deficient number, since it is larger than the sum of its proper divisors (5264159552469).

10231020121131 is an equidigital number, since it uses as much as digits as its factorization.

10231020121131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8136536 (or 8136530 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 10231020121131 its reverse (13112102013201), we get a palindrome (23343122134332).

The spelling of 10231020121131 in words is "ten trillion, two hundred thirty-one billion, twenty million, one hundred twenty-one thousand, one hundred thirty-one".

Divisors: 1 3 9 27 47 141 423 991 1269 2973 8919 26757 46577 139731 419193 1257579 8135489 24406467 73219401 219658203 382367983 1147103949 3441311847 8062269599 10323935541 24186808797 72560426391 217681279173 378926671153 1136780013459 3410340040377 10231020121131