1031429381 has 2 divisors, whose sum is σ = 1031429382. Its totient is φ = 1031429380.

The previous prime is 1031429363. The next prime is 1031429387. The reversal of 1031429381 is 1839241301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 818532100 + 212897281 = 28610^2 + 14591^2 .

It is an emirp because it is prime and its reverse (1839241301) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031429381 is a prime.

It is a super-2 number, since 2×1031429381² = 2127693135980086322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031429387) 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, 515714690 + 515714691.

It is an arithmetic number, because the mean of its divisors is an integer number (515714691).

Almost surely, 2^1031429381 is an apocalyptic number.

It is an amenable number.

1031429381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031429381 is an equidigital number, since it uses as much as digits as its factorization.

1031429381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1031429381 is about 32115.8742836000. The cubic root of 1031429381 is about 1010.3685812887.

The spelling of 1031429381 in words is "one billion, thirty-one million, four hundred twenty-nine thousand, three hundred eighty-one".