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122931103 is a prime number
BaseRepresentation
bin1110101001111…
…00011110011111
322120022112202211
413110330132133
5222432243403
620110501251
73021616501
oct724743637
9276275684
10122931103
1163433a59
1235204827
131c6120c9
141247dd71
15abd406d
hex753c79f

122931103 has 2 divisors, whose sum is σ = 122931104. Its totient is φ = 122931102.

The previous prime is 122931091. The next prime is 122931143. The reversal of 122931103 is 301139221.

It is a weak prime.

It is an emirp because it is prime and its reverse (301139221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122931103 is a prime.

It is a super-2 number, since 2×1229311032 = 30224112169593218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122931143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61465551 + 61465552.

It is an arithmetic number, because the mean of its divisors is an integer number (61465552).

Almost surely, 2122931103 is an apocalyptic number.

122931103 is a deficient number, since it is larger than the sum of its proper divisors (1).

122931103 is an equidigital number, since it uses as much as digits as its factorization.

122931103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 122931103 is about 11087.4299546829. The cubic root of 122931103 is about 497.2261101955.

It can be divided in two parts, 122 and 931103, that added together give a square (931225 = 9652).

The spelling of 122931103 in words is "one hundred twenty-two million, nine hundred thirty-one thousand, one hundred three".