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1031211021104 = 241111731499459
BaseRepresentation
bin11110000000110001111…
…01110111001100110000
310122120201212110120111122
433000120331313030300
5113343410010133404
62105422023001412
7134334241024445
oct17003075671460
93576655416448
101031211021104
11368374813010
12147a32599268
1376320513674
1437ca764d9cc
151bc568563be
hexf018f77330

1031211021104 has 40 divisors (see below), whose sum is σ = 2179795275840. Its totient is φ = 468691387200.

The previous prime is 1031211021103. The next prime is 1031211021131. The reversal of 1031211021104 is 4011201121301.

1031211021104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1031211021103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1814927 + ... + 2314385.

It is an arithmetic number, because the mean of its divisors is an integer number (54494881896).

Almost surely, 21031211021104 is an apocalyptic number.

It is an amenable number.

1031211021104 is an abundant number, since it is smaller than the sum of its proper divisors (1148584254736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1031211021104 is a wasteful number, since it uses less digits than its factorization.

1031211021104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511209 (or 511203 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1031211021104 its reverse (4011201121301), we get a palindrome (5042412142405).

The spelling of 1031211021104 in words is "one trillion, thirty-one billion, two hundred eleven million, twenty-one thousand, one hundred four".

Divisors: 1 2 4 8 11 16 22 44 88 176 11731 23462 46924 93848 129041 187696 258082 499459 516164 998918 1032328 1997836 2064656 3995672 5494049 7991344 10988098 21976196 43952392 87904784 5859153529 11718307058 23436614116 46873228232 64450688819 93746456464 128901377638 257802755276 515605510552 1031211021104