1331303213020 has 24 divisors (see below), whose sum is σ = 3049894633968. Its totient is φ = 484110259200.

The previous prime is 1331303213017. The next prime is 1331303213027. The reversal of 1331303213020 is 203123031331.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1331303212982 and 1331303213000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331303213027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3025688901 + ... + 3025689340.

It is an arithmetic number, because the mean of its divisors is an integer number (127078943082).

Almost surely, 2^{1331303213020} is an apocalyptic number.

1331303213020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331303213020 is an abundant number, since it is smaller than the sum of its proper divisors (1718591420948).

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

1331303213020 is a wasteful number, since it uses less digits than its factorization.

1331303213020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6051378261 (or 6051378259 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 1331303213020 its reverse (203123031331), we get a palindrome (1534426244351).

The spelling of 1331303213020 in words is "one trillion, three hundred thirty-one billion, three hundred three million, two hundred thirteen thousand, twenty".