1031011312 has 20 divisors (see below), whose sum is σ = 2031443640. Its totient is φ = 506767808.

The previous prime is 1031011259. The next prime is 1031011313. The reversal of 1031011312 is 2131101301.

It is a super-2 number, since 2×1031011312² = 2125968650943922688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1031011292 and 1031011301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031011313) 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, 545143 + ... + 547030.

It is an arithmetic number, because the mean of its divisors is an integer number (101572182).

Almost surely, 2^1031011312 is an apocalyptic number.

It is an amenable number.

1031011312 is a deficient number, since it is larger than the sum of its proper divisors (1000432328).

1031011312 is a wasteful number, since it uses less digits than its factorization.

1031011312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092240 (or 1092234 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1031011312 is about 32109.3648644753. The cubic root of 1031011312 is about 1010.2320520301.

Adding to 1031011312 its reverse (2131101301), we get a palindrome (3162112613).

The spelling of 1031011312 in words is "one billion, thirty-one million, eleven thousand, three hundred twelve".