1023431755 has 4 divisors (see below), whose sum is σ = 1228118112. Its totient is φ = 818745400.

The previous prime is 1023431753. The next prime is 1023431821. The reversal of 1023431755 is 5571343201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1023431755 - 2¹ = 1023431753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023431753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102343171 + ... + 102343180.

It is an arithmetic number, because the mean of its divisors is an integer number (307029528).

Almost surely, 2^1023431755 is an apocalyptic number.

1023431755 is a deficient number, since it is larger than the sum of its proper divisors (204686357).

1023431755 is an equidigital number, since it uses as much as digits as its factorization.

1023431755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204686356.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 1023431755 is about 31991.1199397583. The cubic root of 1023431755 is about 1007.7503617102.

Adding to 1023431755 its reverse (5571343201), we get a palindrome (6594774956).

The spelling of 1023431755 in words is "one billion, twenty-three million, four hundred thirty-one thousand, seven hundred fifty-five".