1013431229 has 2 divisors, whose sum is σ = 1013431230. Its totient is φ = 1013431228.

The previous prime is 1013431169. The next prime is 1013431271. The reversal of 1013431229 is 9221343101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 972816100 + 40615129 = 31190^2 + 6373^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013431229 - 2¹² = 1013427133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1013431198 and 1013431207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1013431429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506715614 + 506715615.

It is an arithmetic number, because the mean of its divisors is an integer number (506715615).

Almost surely, 2^1013431229 is an apocalyptic number.

It is an amenable number.

1013431229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013431229 is an equidigital number, since it uses as much as digits as its factorization.

1013431229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1013431229 is about 31834.4346423806. The cubic root of 1013431229 is about 1004.4571803604.

The spelling of 1013431229 in words is "one billion, thirteen million, four hundred thirty-one thousand, two hundred twenty-nine".