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1213132312301 = 71317799926377
BaseRepresentation
bin10001101001110100010…
…100100000111011101101
311021222022021110200210112
4101221310110200323231
5124333443332443201
62325145535345405
7153434356341560
oct21516424407355
94258267420715
101213132312301
11428539622758
12177143682265
138a5232047c0
1442a046964d7
1521852a760bb
hex11a74520eed

1213132312301 has 32 divisors (see below), whose sum is σ = 1600926243840. Its totient is φ = 891944441856.

The previous prime is 1213132312261. The next prime is 1213132312331. The reversal of 1213132312301 is 1032132313121.

It is not a de Polignac number, because 1213132312301 - 222 = 1213128117997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213132312331) 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, 4840976 + ... + 5085401.

It is an arithmetic number, because the mean of its divisors is an integer number (50028945120).

Almost surely, 21213132312301 is an apocalyptic number.

It is an amenable number.

1213132312301 is a deficient number, since it is larger than the sum of its proper divisors (387793931539).

1213132312301 is a wasteful number, since it uses less digits than its factorization.

1213132312301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9926493.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1213132312301 its reverse (1032132313121), we get a palindrome (2245264625422).

The spelling of 1213132312301 in words is "one trillion, two hundred thirteen billion, one hundred thirty-two million, three hundred twelve thousand, three hundred one".

Divisors: 1 7 13 17 79 91 119 221 553 1027 1343 1547 7189 9401 17459 122213 9926377 69484639 129042901 168748409 784183783 903300307 1181238863 2193729317 5489286481 10194389179 13331124311 15356105219 71360724253 93317870177 173304616043 1213132312301