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1210330310231 = 72943138656239
BaseRepresentation
bin10001100111001101010…
…011101110011001010111
311021201002000000020120002
4101213031103232121113
5124312224024411411
62324003523001515
7153305053614410
oct21471523563127
94251060006502
101210330310231
114273309a8069
121766a120929b
138a197856203
144281a4b0807
152173ba9333b
hex119cd4ee657

1210330310231 has 16 divisors (see below), whose sum is σ = 1464209894400. Its totient is φ = 978358415328.

The previous prime is 1210330310207. The next prime is 1210330310239. The reversal of 1210330310231 is 1320130330121.

It is a de Polignac number, because none of the positive numbers 2k-1210330310231 is a prime.

It is a super-2 number, since 2×12103303102312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210330310239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69319391 + ... + 69336848.

It is an arithmetic number, because the mean of its divisors is an integer number (91513118400).

Almost surely, 21210330310231 is an apocalyptic number.

1210330310231 is a deficient number, since it is larger than the sum of its proper divisors (253879584169).

1210330310231 is a wasteful number, since it uses less digits than its factorization.

1210330310231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138656318.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1210330310231 its reverse (1320130330121), we get a palindrome (2530460640352).

The spelling of 1210330310231 in words is "one trillion, two hundred ten billion, three hundred thirty million, three hundred ten thousand, two hundred thirty-one".

Divisors: 1 7 29 43 203 301 1247 8729 138656239 970593673 4021030931 5962218277 28147216517 41735527939 172904330033 1210330310231