1031001021012 has 24 divisors (see below), whose sum is σ = 2483271277312. Its totient is φ = 332580974400.

The previous prime is 1031001020999. The next prime is 1031001021019. The reversal of 1031001021012 is 2101201001301.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031001021019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1385753689 + ... + 1385754432.

Almost surely, 2^{1031001021012} is an apocalyptic number.

1031001021012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1031001021012 is an abundant number, since it is smaller than the sum of its proper divisors (1452270256300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1031001021012 is a wasteful number, since it uses less digits than its factorization.

1031001021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2771508159 (or 2771508157 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 1031001021012 its reverse (2101201001301), we get a palindrome (3132202022313).

The spelling of 1031001021012 in words is "one trillion, thirty-one billion, one million, twenty-one thousand, twelve".