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2201231023131 = 37293614500859
BaseRepresentation
bin100000000010000011100…
…101111101110000011011
321210102202120111222201210
4200002003211331300123
5242031110120220011
64403122004114203
7315014361656550
oct40020345756033
97712676458653
102201231023131
1177959a587978
122b6743995963
1312c76291a5aa
147877c258a27
153c3d45696a6
hex2008397dc1b

2201231023131 has 16 divisors (see below), whose sum is σ = 3469920825600. Its totient is φ = 1214472288288.

The previous prime is 2201231023109. The next prime is 2201231023141. The reversal of 2201231023131 is 1313201321022.

It is not a de Polignac number, because 2201231023131 - 217 = 2201230892059 is a prime.

It is a super-2 number, since 2×22012310231312 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 2201231023098 and 2201231023107.

It is not an unprimeable number, because it can be changed into a prime (2201231023141) 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, 1807249821 + ... + 1807251038.

It is an arithmetic number, because the mean of its divisors is an integer number (216870051600).

Almost surely, 22201231023131 is an apocalyptic number.

2201231023131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2201231023131 is a deficient number, since it is larger than the sum of its proper divisors (1268689802469).

2201231023131 is a wasteful number, since it uses less digits than its factorization.

2201231023131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3614500898.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2201231023131 its reverse (1313201321022), we get a palindrome (3514432344153).

The spelling of 2201231023131 in words is "two trillion, two hundred one billion, two hundred thirty-one million, twenty-three thousand, one hundred thirty-one".

Divisors: 1 3 7 21 29 87 203 609 3614500859 10843502577 25301506013 75904518039 104820524911 314461574733 733743674377 2201231023131