143233051456421 has 16 divisors (see below), whose sum is σ = 147101039233008. Its totient is φ = 139415582592000.

The previous prime is 143233051456399. The next prime is 143233051456447. The reversal of 143233051456421 is 124654150332341.

It can be written as a sum of positive squares in 8 ways, for example, as 38864127492100 + 104368923964321 = 6234110^2 + 10216111^2 .

It is a cyclic number.

It is not a de Polignac number, because 143233051456421 - 2⁴⁶ = 72864307278757 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 (143233057456421) 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, 5333375 + ... + 17745731.

It is an arithmetic number, because the mean of its divisors is an integer number (9193814952063).

Almost surely, 2^{143233051456421} is an apocalyptic number.

It is an amenable number.

143233051456421 is a deficient number, since it is larger than the sum of its proper divisors (3867987776587).

143233051456421 is a wasteful number, since it uses less digits than its factorization.

143233051456421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12414392.

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 143233051456421 in words is "one hundred forty-three trillion, two hundred thirty-three billion, fifty-one million, four hundred fifty-six thousand, four hundred twenty-one".