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31414441312121 = 747113854398911
BaseRepresentation
bin1110010010010001111101…
…00111010111111101111001
311010020012011102120012221212
413021020332213113331321
513104143233433441441
6150451332313212505
76421422066231110
oct711107647277571
9133205142505855
1031414441312121
11a01187616993a
1236343b4a01135
13146b4a4bcc40a
147a8677908c77
15397265b90eeb
hex1c923e9d7f79

31414441312121 has 32 divisors (see below), whose sum is σ = 36995278307328. Its totient is φ = 26117215568640.

The previous prime is 31414441312103. The next prime is 31414441312127. The reversal of 31414441312121 is 12121314441413.

It is not a de Polignac number, because 31414441312121 - 230 = 31413367570297 is a prime.

It is a super-2 number, since 2×314144413121212 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31414441312127) 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, 317553656 + ... + 317652566.

It is an arithmetic number, because the mean of its divisors is an integer number (1156102447104).

Almost surely, 231414441312121 is an apocalyptic number.

It is an amenable number.

31414441312121 is a deficient number, since it is larger than the sum of its proper divisors (5580836995207).

31414441312121 is a wasteful number, since it uses less digits than its factorization.

31414441312121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107621.

The product of its digits is 9216, while the sum is 32.

Adding to 31414441312121 its reverse (12121314441413), we get a palindrome (43535755753534).

The spelling of 31414441312121 in words is "thirty-one trillion, four hundred fourteen billion, four hundred forty-one million, three hundred twelve thousand, one hundred twenty-one".

Divisors: 1 7 47 113 329 791 5311 8543 37177 59801 98911 401521 692377 965359 2810647 4648817 6757513 11176943 32541719 45371873 78238601 317603111 525316321 844996673 3677214247 5914976711 39714843631 95484624049 278003905417 668392368343 4487777330303 31414441312121