1231023308 has 6 divisors (see below), whose sum is σ = 2154290796. Its totient is φ = 615511652.

The previous prime is 1231023301. The next prime is 1231023323. The reversal of 1231023308 is 8033201321.

It is not an unprimeable number, because it can be changed into a prime (1231023301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153877910 + ... + 153877917.

It is an arithmetic number, because the mean of its divisors is an integer number (359048466).

Almost surely, 2^1231023308 is an apocalyptic number.

It is an amenable number.

1231023308 is a deficient number, since it is larger than the sum of its proper divisors (923267488).

1231023308 is a wasteful number, since it uses less digits than its factorization.

1231023308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307755831 (or 307755829 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1231023308 is about 35085.9417430970. The cubic root of 1231023308 is about 1071.7383186085.

Adding to 1231023308 its reverse (8033201321), we get a palindrome (9264224629).

The spelling of 1231023308 in words is "one billion, two hundred thirty-one million, twenty-three thousand, three hundred eight".