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121313202023 = 1313477692423
BaseRepresentation
bin111000011111011010…
…1001000111101100111
3102121010112012012000102
41300332311020331213
53441422134431043
6131421442534315
711523153126506
oct1607665107547
9377115165012
10121313202023
11474a315a252
121b61766739b
13b5942954a0
145c2b90283d
1532504026b8
hex1c3ed48f67

121313202023 has 8 divisors (see below), whose sum is σ = 130654869408. Its totient is φ = 111972946464.

The previous prime is 121313201983. The next prime is 121313202071. The reversal of 121313202023 is 320202313121.

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 121313202023 - 28 = 121313201767 is a prime.

It is a super-2 number, since 2×1213132020232 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121313201986 and 121313202004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121313202523) 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, 171011 + ... + 521412.

It is an arithmetic number, because the mean of its divisors is an integer number (16331858676).

Almost surely, 2121313202023 is an apocalyptic number.

121313202023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121313202023 is a deficient number, since it is larger than the sum of its proper divisors (9341667385).

121313202023 is a wasteful number, since it uses less digits than its factorization.

121313202023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705913.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 121313202023 its reverse (320202313121), we get a palindrome (441515515144).

The spelling of 121313202023 in words is "one hundred twenty-one billion, three hundred thirteen million, two hundred two thousand, twenty-three".

Divisors: 1 13 13477 175201 692423 9001499 9331784771 121313202023