1311212020332 has 96 divisors (see below), whose sum is σ = 3128417510400. Its totient is φ = 427312433152.

The previous prime is 1311212020301. The next prime is 1311212020333. The reversal of 1311212020332 is 2330202121131.

It is a junction number, because it is equal to n+sod(n) for n = 1311212020299 and 1311212020308.

It is not an unprimeable number, because it can be changed into a prime (1311212020333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97213693 + ... + 97227179.

It is an arithmetic number, because the mean of its divisors is an integer number (32587682400).

Almost surely, 2^{1311212020332} is an apocalyptic number.

1311212020332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1311212020332 is an abundant number, since it is smaller than the sum of its proper divisors (1817205490068).

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

1311212020332 is a wasteful number, since it uses less digits than its factorization.

1311212020332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14295 (or 14293 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1311212020332 its reverse (2330202121131), we get a palindrome (3641414141463).

The spelling of 1311212020332 in words is "one trillion, three hundred eleven billion, two hundred twelve million, twenty thousand, three hundred thirty-two".