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31122233010001 = 73239379645913
BaseRepresentation
bin1110001001110001101011…
…01001001010011101010001
311002012020220221002110022201
413010320311221022131101
513034401313122310001
6150105204555203201
76361335642523000
oct704706551123521
9132166827073281
1031122233010001
119a099571a7581
1235a7844a46501
131449a77410833
1479847752ac37
1538e862583501
hex1c4e35a4a751

31122233010001 has 16 divisors (see below), whose sum is σ = 36446007744000. Its totient is φ = 26564583754464.

The previous prime is 31122233009981. The next prime is 31122233010101. The reversal of 31122233010001 is 10001033222113.

It is not a de Polignac number, because 31122233010001 - 231 = 31120085526353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31122233010101) 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, 189740980 + ... + 189904933.

It is an arithmetic number, because the mean of its divisors is an integer number (2277875484000).

Almost surely, 231122233010001 is an apocalyptic number.

It is an amenable number.

31122233010001 is a deficient number, since it is larger than the sum of its proper divisors (5323774733999).

31122233010001 is an equidigital number, since it uses as much as digits as its factorization.

31122233010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379646173 (or 379646159 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31122233010001 its reverse (10001033222113), we get a palindrome (41123266232114).

The spelling of 31122233010001 in words is "thirty-one trillion, one hundred twenty-two billion, two hundred thirty-three million, ten thousand, one".

Divisors: 1 7 49 239 343 1673 11711 81977 379645913 2657521391 18602649737 90735373207 130218548159 635147612449 4446033287143 31122233010001