43052401551321 has 24 divisors (see below), whose sum is σ = 62770103345664. Its totient is φ = 28432403226720.

The previous prime is 43052401551259. The next prime is 43052401551377. The reversal of 43052401551321 is 12315510425034.

43052401551321 is a `hidden beast` number, since 4 + 30 + 5 + 2 + 40 + 1 + 551 + 32 + 1 = 666.

It is not a de Polignac number, because 43052401551321 - 2²² = 43052397357017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43052401553321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28412535 + ... + 29889411.

It is an arithmetic number, because the mean of its divisors is an integer number (2615420972736).

Almost surely, 2^{43052401551321} is an apocalyptic number.

It is an amenable number.

43052401551321 is a deficient number, since it is larger than the sum of its proper divisors (19717701794343).

43052401551321 is a wasteful number, since it uses less digits than its factorization.

43052401551321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507261 (or 1507258 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 43052401551321 its reverse (12315510425034), we get a palindrome (55367911976355).

The spelling of 43052401551321 in words is "forty-three trillion, fifty-two billion, four hundred one million, five hundred fifty-one thousand, three hundred twenty-one".