1421326143452 has 24 divisors (see below), whose sum is σ = 2520096274080. Its totient is φ = 701329291520.

The previous prime is 1421326143449. The next prime is 1421326143463. The reversal of 1421326143452 is 2543416231241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3646088 + ... + 4017039.

It is an arithmetic number, because the mean of its divisors is an integer number (105004011420).

Almost surely, 2^{1421326143452} is an apocalyptic number.

It is an amenable number.

1421326143452 is a deficient number, since it is larger than the sum of its proper divisors (1098770130628).

1421326143452 is a wasteful number, since it uses less digits than its factorization.

1421326143452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7663741 (or 7663739 counting only the distinct ones).

The product of its digits is 138240, while the sum is 38.

The spelling of 1421326143452 in words is "one trillion, four hundred twenty-one billion, three hundred twenty-six million, one hundred forty-three thousand, four hundred fifty-two".