402131030043 has 4 divisors (see below), whose sum is σ = 536174706728. Its totient is φ = 268087353360.

The previous prime is 402131029997. The next prime is 402131030087. The reversal of 402131030043 is 340030131204.

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

It is not a de Polignac number, because 402131030043 - 2¹⁴ = 402131013659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402131037043) 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, 67021838338 + ... + 67021838343.

It is an arithmetic number, because the mean of its divisors is an integer number (134043676682).

Almost surely, 2^402131030043 is an apocalyptic number.

402131030043 is a deficient number, since it is larger than the sum of its proper divisors (134043676685).

402131030043 is a wasteful number, since it uses less digits than its factorization.

402131030043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134043676684.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 402131030043 its reverse (340030131204), we get a palindrome (742161161247).

The spelling of 402131030043 in words is "four hundred two billion, one hundred thirty-one million, thirty thousand, forty-three".