1325211243021 has 12 divisors (see below), whose sum is σ = 2014941071520. Its totient is φ = 836975521800.

The previous prime is 1325211243011. The next prime is 1325211243049. The reversal of 1325211243021 is 1203421125231.

It is a happy number.

1325211243021 is a `hidden beast` number, since 1 + 325 + 2 + 11 + 24 + 302 + 1 = 666.

It is not a de Polignac number, because 1325211243021 - 2⁵ = 1325211242989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325211243011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3874886505 + ... + 3874886846.

It is an arithmetic number, because the mean of its divisors is an integer number (167911755960).

Almost surely, 2^{1325211243021} is an apocalyptic number.

It is an amenable number.

1325211243021 is a deficient number, since it is larger than the sum of its proper divisors (689729828499).

1325211243021 is a wasteful number, since it uses less digits than its factorization.

1325211243021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7749773376 (or 7749773373 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 1325211243021 its reverse (1203421125231), we get a palindrome (2528632368252).

The spelling of 1325211243021 in words is "one trillion, three hundred twenty-five billion, two hundred eleven million, two hundred forty-three thousand, twenty-one".