1021231304412 has 48 divisors (see below), whose sum is σ = 2600802849792. Its totient is φ = 309308676480.

The previous prime is 1021231304411. The next prime is 1021231304497. The reversal of 1021231304412 is 2144031321201.

1021231304412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1021231304412³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021231304411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1677868 + ... + 2204019.

It is an arithmetic number, because the mean of its divisors is an integer number (54183392704).

Almost surely, 2^{1021231304412} is an apocalyptic number.

1021231304412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1021231304412 is an abundant number, since it is smaller than the sum of its proper divisors (1579571545380).

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

1021231304412 is a wasteful number, since it uses less digits than its factorization.

1021231304412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3883898 (or 3883896 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1021231304412 its reverse (2144031321201), we get a palindrome (3165262625613).

The spelling of 1021231304412 in words is "one trillion, twenty-one billion, two hundred thirty-one million, three hundred four thousand, four hundred twelve".