1023031012 has 6 divisors (see below), whose sum is σ = 1790304278. Its totient is φ = 511515504.

The previous prime is 1023031001. The next prime is 1023031013. The reversal of 1023031012 is 2101303201.

It can be written as a sum of positive squares in only one way, i.e., 1022976256 + 54756 = 31984^2 + 234^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1023030983 and 1023031001.

It is not an unprimeable number, because it can be changed into a prime (1023031013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127878873 + ... + 127878880.

Almost surely, 2^1023031012 is an apocalyptic number.

It is an amenable number.

1023031012 is a deficient number, since it is larger than the sum of its proper divisors (767273266).

1023031012 is a wasteful number, since it uses less digits than its factorization.

1023031012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255757757 (or 255757755 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1023031012 is about 31984.8559790411. The cubic root of 1023031012 is about 1007.6188103149.

Adding to 1023031012 its reverse (2101303201), we get a palindrome (3124334213).

The spelling of 1023031012 in words is "one billion, twenty-three million, thirty-one thousand, twelve".