1021040654612 has 60 divisors (see below), whose sum is σ = 1977580510080. Its totient is φ = 457453644000.

The previous prime is 1021040654611. The next prime is 1021040654633. The reversal of 1021040654612 is 2164560401201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021040654611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4578657533 + ... + 4578657755.

It is an arithmetic number, because the mean of its divisors is an integer number (32959675168).

Almost surely, 2^{1021040654612} is an apocalyptic number.

It is an amenable number.

1021040654612 is a deficient number, since it is larger than the sum of its proper divisors (956539855468).

1021040654612 is an frugal number, since it uses more digits than its factorization.

1021040654612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 1021040654612 in words is "one trillion, twenty-one billion, forty million, six hundred fifty-four thousand, six hundred twelve".