31420213330004 has 6 divisors (see below), whose sum is σ = 54985373327514. Its totient is φ = 15710106665000.

The previous prime is 31420213330003. The next prime is 31420213330049. The reversal of 31420213330004 is 40003331202413.

It can be written as a sum of positive squares in only one way, i.e., 18708635321104 + 12711578008900 = 4325348^2 + 3565330^2 .

It is a super-2 number, since 2×31420213330004² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31420213330003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3927526666247 + ... + 3927526666254.

It is an arithmetic number, because the mean of its divisors is an integer number (9164228887919).

Almost surely, 2^{31420213330004} is an apocalyptic number.

It is an amenable number.

31420213330004 is a deficient number, since it is larger than the sum of its proper divisors (23565159997510).

31420213330004 is a wasteful number, since it uses less digits than its factorization.

31420213330004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7855053332505 (or 7855053332503 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 31420213330004 its reverse (40003331202413), we get a palindrome (71423544532417).

The spelling of 31420213330004 in words is "thirty-one trillion, four hundred twenty billion, two hundred thirteen million, three hundred thirty thousand, four".