31420455042543 has 64 divisors (see below), whose sum is σ = 48204564894720. Its totient is φ = 17832810240000.

The previous prime is 31420455042541. The next prime is 31420455042577. The reversal of 31420455042543 is 34524055402413.

It is not a de Polignac number, because 31420455042543 - 2¹ = 31420455042541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31420455042495 and 31420455042504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31420455042541) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4013338153 + ... + 4013345981.

It is an arithmetic number, because the mean of its divisors is an integer number (753196326480).

Almost surely, 2^{31420455042543} is an apocalyptic number.

31420455042543 is a deficient number, since it is larger than the sum of its proper divisors (16784109852177).

31420455042543 is a wasteful number, since it uses less digits than its factorization.

31420455042543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9968.

The product of its (nonzero) digits is 1152000, while the sum is 42.

The spelling of 31420455042543 in words is "thirty-one trillion, four hundred twenty billion, four hundred fifty-five million, forty-two thousand, five hundred forty-three".