143163240420331 has 4 divisors (see below), whose sum is σ = 145300005202792. Its totient is φ = 141026475637872.

The previous prime is 143163240420307. The next prime is 143163240420353. The reversal of 143163240420331 is 133024042361341.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 143163240420331 - 2⁹ = 143163240419819 is a prime.

It is a super-2 number, since 2×143163240420331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143163240420391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1068382391130 + ... + 1068382391263.

It is an arithmetic number, because the mean of its divisors is an integer number (36325001300698).

Almost surely, 2^{143163240420331} is an apocalyptic number.

143163240420331 is a deficient number, since it is larger than the sum of its proper divisors (2136764782461).

143163240420331 is an equidigital number, since it uses as much as digits as its factorization.

143163240420331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136764782460.

The product of its (nonzero) digits is 124416, while the sum is 37.

Adding to 143163240420331 its reverse (133024042361341), we get a palindrome (276187282781672).

The spelling of 143163240420331 in words is "one hundred forty-three trillion, one hundred sixty-three billion, two hundred forty million, four hundred twenty thousand, three hundred thirty-one".