1031135430 has 64 divisors (see below), whose sum is σ = 2678816448. Its totient is φ = 252510720.

The previous prime is 1031135419. The next prime is 1031135437. The reversal of 1031135430 is 345311301.

It is a junction number, because it is equal to n+sod(n) for n = 1031135397 and 1031135406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031135437) 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 in 31 ways as a sum of consecutive naturals, for example, 70120 + ... + 83540.

It is an arithmetic number, because the mean of its divisors is an integer number (41856507).

Almost surely, 2^1031135430 is an apocalyptic number.

1031135430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1031135430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1339408224).

1031135430 is an abundant number, since it is smaller than the sum of its proper divisors (1647681018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1031135430 is a wasteful number, since it uses less digits than its factorization.

1031135430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13641.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1031135430 is about 32111.2975446337. The cubic root of 1031135430 is about 1010.2725892350.

Adding to 1031135430 its reverse (345311301), we get a palindrome (1376446731).

The spelling of 1031135430 in words is "one billion, thirty-one million, one hundred thirty-five thousand, four hundred thirty".