1321451102431 has 8 divisors (see below), whose sum is σ = 1327417731584. Its totient is φ = 1315484838360.

The previous prime is 1321451102401. The next prime is 1321451102443. The reversal of 1321451102431 is 1342011541231.

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 1321451102431 - 2¹¹ = 1321451100383 is a prime.

It is a super-2 number, since 2×1321451102431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1321451102431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321451102401) 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, 9369820 + ... + 9509806.

It is an arithmetic number, because the mean of its divisors is an integer number (165927216448).

Almost surely, 2^{1321451102431} is an apocalyptic number.

1321451102431 is a deficient number, since it is larger than the sum of its proper divisors (5966629153).

1321451102431 is a wasteful number, since it uses less digits than its factorization.

1321451102431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182541.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 1321451102431 its reverse (1342011541231), we get a palindrome (2663462643662).

The spelling of 1321451102431 in words is "one trillion, three hundred twenty-one billion, four hundred fifty-one million, one hundred two thousand, four hundred thirty-one".