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231230130122 = 21276007151549
BaseRepresentation
bin1101011101011001100…
…0111100011111001010
3211002211211021200011102
43113112120330133022
512242024403130442
6254120424101402
722464045451025
oct3272630743712
9732754250142
10231230130122
118a0784201a2
1238992604862
1318a604c7a04
14b297a601bc
15603508b232
hex35d663c7ca

231230130122 has 16 divisors (see below), whose sum is σ = 349636761600. Its totient is φ = 114684858288.

The previous prime is 231230130119. The next prime is 231230130143. The reversal of 231230130122 is 221031032132.

It is a junction number, because it is equal to n+sod(n) for n = 231230130094 and 231230130103.

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, 1450004 + ... + 1601552.

It is an arithmetic number, because the mean of its divisors is an integer number (21852297600).

Almost surely, 2231230130122 is an apocalyptic number.

231230130122 is a deficient number, since it is larger than the sum of its proper divisors (118406631478).

231230130122 is a wasteful number, since it uses less digits than its factorization.

231230130122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157685.

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

Adding to 231230130122 its reverse (221031032132), we get a palindrome (452261162254).

The spelling of 231230130122 in words is "two hundred thirty-one billion, two hundred thirty million, one hundred thirty thousand, one hundred twenty-two".

Divisors: 1 2 127 254 6007 12014 151549 303098 762889 1525778 19246723 38493446 910354843 1820709686 115615065061 231230130122