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10212001331 = 71458857333
BaseRepresentation
bin10011000001010111…
…01100011000110011
3222100200200102021112
421200223230120303
5131403233020311
64405154343535
7511030402430
oct114053543063
928320612245
1010212001331
114370454824
121b8bb8abab
13c698b724c
146cc38ab87
153eb7d828b
hex260aec633

10212001331 has 4 divisors (see below), whose sum is σ = 11670858672. Its totient is φ = 8753143992.

The previous prime is 10212001313. The next prime is 10212001361. The reversal of 10212001331 is 13310021201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10212001331 - 210 = 10212000307 is a prime.

It is a super-2 number, since 2×102120013312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10212001301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 729428660 + ... + 729428673.

It is an arithmetic number, because the mean of its divisors is an integer number (2917714668).

Almost surely, 210212001331 is an apocalyptic number.

10212001331 is a deficient number, since it is larger than the sum of its proper divisors (1458857341).

10212001331 is an equidigital number, since it uses as much as digits as its factorization.

10212001331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458857340.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 10212001331 its reverse (13310021201), we get a palindrome (23522022532).

The spelling of 10212001331 in words is "ten billion, two hundred twelve million, one thousand, three hundred thirty-one".

Divisors: 1 7 1458857333 10212001331