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1201300381 is a prime number
BaseRepresentation
bin100011110011010…
…0110001110011101
310002201110101022201
41013212212032131
54430013103011
6315112011501
741524612321
oct10746461635
93081411281
101201300381
11567114836
12296390b91
13161b5b338
14b578b981
15706e5cc1
hex479a639d

1201300381 has 2 divisors, whose sum is σ = 1201300382. Its totient is φ = 1201300380.

The previous prime is 1201300343. The next prime is 1201300481. The reversal of 1201300381 is 1830031021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1179304281 + 21996100 = 34341^2 + 4690^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201300381 - 27 = 1201300253 is a prime.

It is a super-2 number, since 2×12013003812 = 2886245210781490322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201300181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600650190 + 600650191.

It is an arithmetic number, because the mean of its divisors is an integer number (600650191).

Almost surely, 21201300381 is an apocalyptic number.

It is an amenable number.

1201300381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201300381 is an equidigital number, since it uses as much as digits as its factorization.

1201300381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1201300381 is about 34659.7804522764. The cubic root of 1201300381 is about 1063.0422808941.

The spelling of 1201300381 in words is "one billion, two hundred one million, three hundred thousand, three hundred eighty-one".