1021311434012 has 12 divisors (see below), whose sum is σ = 1789256920416. Its totient is φ = 510095171040.

The previous prime is 1021311433993. The next prime is 1021311434063. The reversal of 1021311434012 is 2104341131201.

It is a super-2 number, since 2×1021311434012² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140132393 + ... + 140139680.

It is an arithmetic number, because the mean of its divisors is an integer number (149104743368).

Almost surely, 2^{1021311434012} is an apocalyptic number.

It is an amenable number.

1021311434012 is a deficient number, since it is larger than the sum of its proper divisors (767945486404).

1021311434012 is a wasteful number, since it uses less digits than its factorization.

1021311434012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280272988 (or 280272986 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1021311434012 its reverse (2104341131201), we get a palindrome (3125652565213).

The spelling of 1021311434012 in words is "one trillion, twenty-one billion, three hundred eleven million, four hundred thirty-four thousand, twelve".