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121311022 = 278665073
BaseRepresentation
bin1110011101100…
…00111100101110
322110021020102211
413032300330232
5222023423042
620012041034
73002061310
oct716607456
9273236384
10121311022
1162527848
123476317a
131c195891
141217b7b0
15a9b4017
hex73b0f2e

121311022 has 8 divisors (see below), whose sum is σ = 207961776. Its totient is φ = 51990432.

The previous prime is 121311019. The next prime is 121311053. The reversal of 121311022 is 220113121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 121310993 and 121311011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4332523 + ... + 4332550.

It is an arithmetic number, because the mean of its divisors is an integer number (25995222).

Almost surely, 2121311022 is an apocalyptic number.

121311022 is a deficient number, since it is larger than the sum of its proper divisors (86650754).

121311022 is an equidigital number, since it uses as much as digits as its factorization.

121311022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8665082.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 121311022 is about 11014.1282905185. The cubic root of 121311022 is about 495.0321674161.

Adding to 121311022 its reverse (220113121), we get a palindrome (341424143).

The spelling of 121311022 in words is "one hundred twenty-one million, three hundred eleven thousand, twenty-two".

Divisors: 1 2 7 14 8665073 17330146 60655511 121311022