1023531097 has 4 divisors (see below), whose sum is σ = 1027778356. Its totient is φ = 1019283840.

The previous prime is 1023530987. The next prime is 1023531127. The reversal of 1023531097 is 7901353201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 916636176 + 106894921 = 30276^2 + 10339^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1023531097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023531797) 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, 2123268 + ... + 2123749.

It is an arithmetic number, because the mean of its divisors is an integer number (256944589).

Almost surely, 2^1023531097 is an apocalyptic number.

It is an amenable number.

1023531097 is a deficient number, since it is larger than the sum of its proper divisors (4247259).

1023531097 is an equidigital number, since it uses as much as digits as its factorization.

1023531097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4247258.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 1023531097 is about 31992.6725516953. The cubic root of 1023531097 is about 1007.7829672705.

Adding to 1023531097 its reverse (7901353201), we get a palindrome (8924884298).

The spelling of 1023531097 in words is "one billion, twenty-three million, five hundred thirty-one thousand, ninety-seven".