1232012381 has 2 divisors, whose sum is σ = 1232012382. Its totient is φ = 1232012380.

The previous prime is 1232012359. The next prime is 1232012387. The reversal of 1232012381 is 1832102321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 765020281 + 466992100 = 27659^2 + 21610^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232012381 - 2¹⁴ = 1231995997 is a prime.

It is a super-2 number, since 2×1232012381² = 3035709013874578322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1232012387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616006190 + 616006191.

It is an arithmetic number, because the mean of its divisors is an integer number (616006191).

Almost surely, 2^1232012381 is an apocalyptic number.

It is an amenable number.

1232012381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232012381 is an equidigital number, since it uses as much as digits as its factorization.

1232012381 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1232012381 is about 35100.0339173625. The cubic root of 1232012381 is about 1072.0252732796.

The spelling of 1232012381 in words is "one billion, two hundred thirty-two million, twelve thousand, three hundred eighty-one".