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31303214123 = 891312684897
BaseRepresentation
bin11101001001110100…
…010010010000101011
32222210120112001001212
4131021310102100223
51003102110322443
622214104303335
72155502633636
oct351164222053
988716461055
1031303214123
11123039370a5
126097471b4b
132c4b38700c
14172d564c1d
15c33251618
hex749d1242b

31303214123 has 8 divisors (see below), whose sum is σ = 31896588240. Its totient is φ = 30715210240.

The previous prime is 31303214119. The next prime is 31303214177. The reversal of 31303214123 is 32141230313.

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 31303214123 - 22 = 31303214119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31303414123) 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, 1330790 + ... + 1354107.

It is an arithmetic number, because the mean of its divisors is an integer number (3987073530).

Almost surely, 231303214123 is an apocalyptic number.

31303214123 is a deficient number, since it is larger than the sum of its proper divisors (593374117).

31303214123 is a wasteful number, since it uses less digits than its factorization.

31303214123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2685117.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31303214123 its reverse (32141230313), we get a palindrome (63444444436).

The spelling of 31303214123 in words is "thirty-one billion, three hundred three million, two hundred fourteen thousand, one hundred twenty-three".

Divisors: 1 89 131 11659 2684897 238955833 351721507 31303214123