1254321323431 has 16 divisors (see below), whose sum is σ = 1369662795648. Its totient is φ = 1139199098400.

The previous prime is 1254321323389. The next prime is 1254321323443. The reversal of 1254321323431 is 1343231234521.

It is a de Polignac number, because none of the positive numbers 2^k-1254321323431 is a prime.

It is a super-2 number, since 2×1254321323431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254321323831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56625100 + ... + 56647246.

It is an arithmetic number, because the mean of its divisors is an integer number (85603924728).

Almost surely, 2^{1254321323431} is an apocalyptic number.

1254321323431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1254321323431 is a deficient number, since it is larger than the sum of its proper divisors (115341472217).

1254321323431 is a wasteful number, since it uses less digits than its factorization.

1254321323431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26862.

The product of its digits is 51840, while the sum is 34.

Adding to 1254321323431 its reverse (1343231234521), we get a palindrome (2597552557952).

The spelling of 1254321323431 in words is "one trillion, two hundred fifty-four billion, three hundred twenty-one million, three hundred twenty-three thousand, four hundred thirty-one".