1321213230311 has 16 divisors (see below), whose sum is σ = 1456161722400. Its totient is φ = 1191033123840.

The previous prime is 1321213230277. The next prime is 1321213230329. The reversal of 1321213230311 is 1130323121231.

It is a cyclic number.

It is not a de Polignac number, because 1321213230311 - 2¹⁸ = 1321212968167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321213230391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3464015 + ... + 3826463.

It is an arithmetic number, because the mean of its divisors is an integer number (91010107650).

Almost surely, 2^{1321213230311} is an apocalyptic number.

1321213230311 is a deficient number, since it is larger than the sum of its proper divisors (134948492089).

1321213230311 is a wasteful number, since it uses less digits than its factorization.

1321213230311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369026.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1321213230311 its reverse (1130323121231), we get a palindrome (2451536351542).

The spelling of 1321213230311 in words is "one trillion, three hundred twenty-one billion, two hundred thirteen million, two hundred thirty thousand, three hundred eleven".