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42031122113311 = 971383511128691
BaseRepresentation
bin10011000111010001000100…
…00110100110001100011111
312111211010200011112000201221
421203220202012212030133
521002114214230111221
6225220455252114211
711565435250124032
oct1143504206461437
9174733604460657
1042031122113311
1112435331758261
124869ab5905967
131a5b696817ba6
14a5446242b019
154cd4d50c6541
hex263a221a631f

42031122113311 has 8 divisors (see below), whose sum is σ = 42075542907648. Its totient is φ = 41986703655000.

The previous prime is 42031122113287. The next prime is 42031122113341. The reversal of 42031122113311 is 11331122113024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42031122113311 - 29 = 42031122112799 is a prime.

It is a super-2 number, since 2×420311221133112 (a number of 28 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 (42031122113341) 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, 36674476 + ... + 37803166.

It is an arithmetic number, because the mean of its divisors is an integer number (5259442863456).

Almost surely, 242031122113311 is an apocalyptic number.

42031122113311 is a deficient number, since it is larger than the sum of its proper divisors (44420794337).

42031122113311 is a wasteful number, since it uses less digits than its factorization.

42031122113311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168013.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 42031122113311 its reverse (11331122113024), we get a palindrome (53362244226335).

The spelling of 42031122113311 in words is "forty-two trillion, thirty-one billion, one hundred twenty-two million, one hundred thirteen thousand, three hundred eleven".

Divisors: 1 971 38351 1128691 37238821 1095958961 43286428541 42031122113311