1331232020012 has 24 divisors (see below), whose sum is σ = 2461716902400. Its totient is φ = 628616987856.

The previous prime is 1331232019987. The next prime is 1331232020029. The reversal of 1331232020012 is 2100202321331.

It is a super-2 number, since 2×1331232020012² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91574462 + ... + 91588997.

It is an arithmetic number, because the mean of its divisors is an integer number (102571537600).

Almost surely, 2^{1331232020012} is an apocalyptic number.

It is an amenable number.

1331232020012 is a deficient number, since it is larger than the sum of its proper divisors (1130484882388).

1331232020012 is a wasteful number, since it uses less digits than its factorization.

1331232020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183163565 (or 183163563 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1331232020012 its reverse (2100202321331), we get a palindrome (3431434341343).

The spelling of 1331232020012 in words is "one trillion, three hundred thirty-one billion, two hundred thirty-two million, twenty thousand, twelve".