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122121383 is a prime number
BaseRepresentation
bin1110100011101…
…10110010100111
322111210102001012
413101312302213
5222230341013
620041252435
73012005006
oct721666247
9274712035
10122121383
1162a3066a
1234a9411b
131c3ba697
141230cc3d
15aac41a8
hex7476ca7

122121383 has 2 divisors, whose sum is σ = 122121384. Its totient is φ = 122121382.

The previous prime is 122121371. The next prime is 122121413. The reversal of 122121383 is 383121221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122121383 - 210 = 122120359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122121323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61060691 + 61060692.

It is an arithmetic number, because the mean of its divisors is an integer number (61060692).

Almost surely, 2122121383 is an apocalyptic number.

122121383 is a deficient number, since it is larger than the sum of its proper divisors (1).

122121383 is an equidigital number, since it uses as much as digits as its factorization.

122121383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 23.

The square root of 122121383 is about 11050.8544013574. The cubic root of 122121383 is about 496.1319982866.

The spelling of 122121383 in words is "one hundred twenty-two million, one hundred twenty-one thousand, three hundred eighty-three".