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31232103122 = 2119803144817
BaseRepresentation
bin11101000101100101…
…000001001011010010
32222121121201020010002
4131011211001023102
51002430404244442
622203044210002
72153650332143
oct350545011322
988547636102
1031232103122
1112277787380
126077699902
132c397198bc
141723d33aca
15c2bda6732
hex7459412d2

31232103122 has 16 divisors (see below), whose sum is σ = 51112644192. Its totient is φ = 14194864320.

The previous prime is 31232103103. The next prime is 31232103137. The reversal of 31232103122 is 22130123213.

It is a junction number, because it is equal to n+sod(n) for n = 31232103094 and 31232103103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143258 + ... + 288074.

It is an arithmetic number, because the mean of its divisors is an integer number (3194540262).

Almost surely, 231232103122 is an apocalyptic number.

31232103122 is a deficient number, since it is larger than the sum of its proper divisors (19880541070).

31232103122 is a wasteful number, since it uses less digits than its factorization.

31232103122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154633.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31232103122 its reverse (22130123213), we get a palindrome (53362226335).

The spelling of 31232103122 in words is "thirty-one billion, two hundred thirty-two million, one hundred three thousand, one hundred twenty-two".

Divisors: 1 2 11 22 9803 19606 107833 144817 215666 289634 1592987 3185974 1419641051 2839282102 15616051561 31232103122