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122020351 is a prime number
BaseRepresentation
bin1110100010111…
…10000111111111
322111121021110021
413101132013333
5222214122401
620035153011
73011104315
oct721360777
9274537407
10122020351
1162971772
1234a45767
131c3836bb
14122c40b5
15aaa42a1
hex745e1ff

122020351 has 2 divisors, whose sum is σ = 122020352. Its totient is φ = 122020350.

The previous prime is 122020307. The next prime is 122020357. The reversal of 122020351 is 153020221.

It is a strong prime.

It is an emirp because it is prime and its reverse (153020221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122020351 - 217 = 121889279 is a prime.

It is a super-3 number, since 3×1220203513 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122020357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61010175 + 61010176.

It is an arithmetic number, because the mean of its divisors is an integer number (61010176).

Almost surely, 2122020351 is an apocalyptic number.

122020351 is a deficient number, since it is larger than the sum of its proper divisors (1).

122020351 is an equidigital number, since it uses as much as digits as its factorization.

122020351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 122020351 is about 11046.2822252557. The cubic root of 122020351 is about 495.9951425448.

Adding to 122020351 its reverse (153020221), we get a palindrome (275040572).

The spelling of 122020351 in words is "one hundred twenty-two million, twenty thousand, three hundred fifty-one".