1331131412 has 48 divisors (see below), whose sum is σ = 2664298560. Its totient is φ = 576834048.

The previous prime is 1331131409. The next prime is 1331131423. The reversal of 1331131412 is 2141311331.

It is a super-2 number, since 2×1331131412² = 3543821672026227488, which 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 15 ways as a sum of consecutive naturals, for example, 105683 + ... + 117605.

It is an arithmetic number, because the mean of its divisors is an integer number (55506220).

Almost surely, 2^1331131412 is an apocalyptic number.

It is an amenable number.

1331131412 is an abundant number, since it is smaller than the sum of its proper divisors (1333167148).

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

1331131412 is a wasteful number, since it uses less digits than its factorization.

1331131412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12072 (or 12070 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

The square root of 1331131412 is about 36484.6736589489. The cubic root of 1331131412 is about 1100.0362004615.

Adding to 1331131412 its reverse (2141311331), we get a palindrome (3472442743).

The spelling of 1331131412 in words is "one billion, three hundred thirty-one million, one hundred thirty-one thousand, four hundred twelve".