1321211301131 has 8 divisors (see below), whose sum is σ = 1346709602784. Its totient is φ = 1295912986560.

The previous prime is 1321211301061. The next prime is 1321211301143. The reversal of 1321211301131 is 1311031121231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1321211301131 - 2¹⁴ = 1321211284747 is a prime.

It is a super-2 number, since 2×1321211301131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321211301181) 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, 49983431 + ... + 50009856.

It is an arithmetic number, because the mean of its divisors is an integer number (168338700348).

Almost surely, 2^{1321211301131} is an apocalyptic number.

1321211301131 is a deficient number, since it is larger than the sum of its proper divisors (25498301653).

1321211301131 is an equidigital number, since it uses as much as digits as its factorization.

1321211301131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99993541.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1321211301131 its reverse (1311031121231), we get a palindrome (2632242422362).

The spelling of 1321211301131 in words is "one trillion, three hundred twenty-one billion, two hundred eleven million, three hundred one thousand, one hundred thirty-one".