Search a number
-
+
121230102213311 = 7213225575725283
BaseRepresentation
bin11011100100001000010101…
…001011011011001010111111
3120220020111002021010000121012
4123210020111023123022333
5111342213222131311221
61105500201244225435
734351404642400100
oct3344102513331277
9526214067100535
10121230102213311
113569a441267743
121171b257b3b27b
135284c46316800
1421d17d540c3a7
15e03716e0a65b
hex6e42152db2bf

121230102213311 has 36 divisors (see below), whose sum is σ = 152764878879432. Its totient is φ = 95880793829184.

The previous prime is 121230102213299. The next prime is 121230102213383. The reversal of 121230102213311 is 113312201032121.

It is a happy number.

It is not a de Polignac number, because 121230102213311 - 234 = 121212922344127 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 (121230102213511) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 18311876 + ... + 24037158.

It is an arithmetic number, because the mean of its divisors is an integer number (4243468857762).

Almost surely, 2121230102213311 is an apocalyptic number.

121230102213311 is a deficient number, since it is larger than the sum of its proper divisors (31534776666121).

121230102213311 is a wasteful number, since it uses less digits than its factorization.

121230102213311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5727880 (or 5727860 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 121230102213311 its reverse (113312201032121), we get a palindrome (234542303245432).

The spelling of 121230102213311 in words is "one hundred twenty-one trillion, two hundred thirty billion, one hundred two million, two hundred thirteen thousand, three hundred eleven".

Divisors: 1 7 13 49 91 169 637 1183 2557 8281 17899 33241 125293 232687 432133 1628809 3024931 5725283 21174517 40076981 74428679 280538867 521000753 967572827 3647005271 6773009789 14639548631 47411068523 102476840417 190314132203 717337882919 1332198925421 2474083718639 9325392477947 17318586030473 121230102213311