1023231553 has 8 divisors (see below), whose sum is σ = 1041296256. Its totient is φ = 1005303600.

The previous prime is 1023231551. The next prime is 1023231577. The reversal of 1023231553 is 3551323201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1023231553 - 2¹ = 1023231551 is a prime.

It is a super-2 number, since 2×1023231553² = 2094005622109583618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023231551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19033 + ... + 49078.

It is an arithmetic number, because the mean of its divisors is an integer number (130162032).

Almost surely, 2^1023231553 is an apocalyptic number.

It is an amenable number.

1023231553 is a deficient number, since it is larger than the sum of its proper divisors (18064703).

1023231553 is an equidigital number, since it uses as much as digits as its factorization.

1023231553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68375.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 1023231553 is about 31987.9907621595. The cubic root of 1023231553 is about 1007.6846459475.

Adding to 1023231553 its reverse (3551323201), we get a palindrome (4574554754).

The spelling of 1023231553 in words is "one billion, twenty-three million, two hundred thirty-one thousand, five hundred fifty-three".