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1031214121 = 7163903781
BaseRepresentation
bin111101011101110…
…001010000101001
32122212102002211121
4331131301100221
54102442322441
6250154255241
734361114110
oct7535612051
92585362747
101031214121
1148a103483
12249427521
13135848992
149ad54c77
15607e9dd1
hex3d771429

1031214121 has 8 divisors (see below), whose sum is σ = 1185761984. Its totient is φ = 878474160.

The previous prime is 1031214109. The next prime is 1031214139. The reversal of 1031214121 is 1214121301.

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 1031214121 - 29 = 1031213609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031214095 and 1031214104.

It is not an unprimeable number, because it can be changed into a prime (1031244121) 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, 450750 + ... + 453031.

It is an arithmetic number, because the mean of its divisors is an integer number (148220248).

Almost surely, 21031214121 is an apocalyptic number.

It is an amenable number.

1031214121 is a deficient number, since it is larger than the sum of its proper divisors (154547863).

1031214121 is an equidigital number, since it uses as much as digits as its factorization.

1031214121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903951.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1031214121 is about 32112.5228065314. The cubic root of 1031214121 is about 1010.2982881994.

Adding to 1031214121 its reverse (1214121301), we get a palindrome (2245335422).

The spelling of 1031214121 in words is "one billion, thirty-one million, two hundred fourteen thousand, one hundred twenty-one".

Divisors: 1 7 163 1141 903781 6326467 147316303 1031214121