1031520234 has 32 divisors (see below), whose sum is σ = 2101510656. Its totient is φ = 337472240.

The previous prime is 1031520229. The next prime is 1031520263. The reversal of 1031520234 is 4320251301.

It is a self number, because there is not a number n which added to its sum of digits gives 1031520234.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91369 + ... + 102035.

It is an arithmetic number, because the mean of its divisors is an integer number (65672208).

Almost surely, 2^1031520234 is an apocalyptic number.

1031520234 is an abundant number, since it is smaller than the sum of its proper divisors (1069990422).

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

1031520234 is a wasteful number, since it uses less digits than its factorization.

1031520234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10970.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1031520234 is about 32117.2887087313. The cubic root of 1031520234 is about 1010.3982463740.

Adding to 1031520234 its reverse (4320251301), we get a palindrome (5351771535).

The spelling of 1031520234 in words is "one billion, thirty-one million, five hundred twenty thousand, two hundred thirty-four".