31122420434 has 16 divisors (see below), whose sum is σ = 53574107136. Its totient is φ = 13282833600.

The previous prime is 31122420401. The next prime is 31122420467. The reversal of 31122420434 is 43402422113.

It is an interprime number because it is at equal distance from previous prime (31122420401) and next prime (31122420467).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4608722 + ... + 4615469.

It is an arithmetic number, because the mean of its divisors is an integer number (3348381696).

Almost surely, 2^31122420434 is an apocalyptic number.

31122420434 is a deficient number, since it is larger than the sum of its proper divisors (22451686702).

31122420434 is a wasteful number, since it uses less digits than its factorization.

31122420434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9224441.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 31122420434 its reverse (43402422113), we get a palindrome (74524842547).

The spelling of 31122420434 in words is "thirty-one billion, one hundred twenty-two million, four hundred twenty thousand, four hundred thirty-four".