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1112112021331 = 191632831268881
BaseRepresentation
bin10000001011101111000…
…010101011111101010011
310221022112222222012110101
4100023233002223331103
5121210101134140311
62210521444113231
7143230113132043
oct20135702537523
93838488865411
101112112021331
1139970a274983
1215b650095817
1380b442021bc
143bb7dd25723
151dddde9cec1
hex102ef0abf53

1112112021331 has 16 divisors (see below), whose sum is σ = 1181988960640. Its totient is φ = 1043415250560.

The previous prime is 1112112021299. The next prime is 1112112021341. The reversal of 1112112021331 is 1331202112111.

It is a cyclic number.

It is not a de Polignac number, because 1112112021331 - 25 = 1112112021299 is a prime.

It is a super-3 number, since 3×11121120213313 (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112112021299 and 1112112021308.

It is not an unprimeable number, because it can be changed into a prime (1112112021341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242011 + ... + 1510891.

It is an arithmetic number, because the mean of its divisors is an integer number (73874310040).

Almost surely, 21112112021331 is an apocalyptic number.

1112112021331 is a deficient number, since it is larger than the sum of its proper divisors (69876939309).

1112112021331 is a wasteful number, since it uses less digits than its factorization.

1112112021331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269346.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 1112112021331 its reverse (1331202112111), we get a palindrome (2443314133442).

The spelling of 1112112021331 in words is "one trillion, one hundred twelve billion, one hundred twelve million, twenty-one thousand, three hundred thirty-one".

Divisors: 1 19 163 283 3097 5377 46129 876451 1268881 24108739 206827603 359093323 3929724457 6822773137 58532211649 1112112021331