31440402104134 has 8 divisors (see below), whose sum is σ = 47161496220408. Its totient is φ = 15719903364000.

The previous prime is 31440402104131. The next prime is 31440402104143. The reversal of 31440402104134 is 43140120404413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 31440402104096 and 31440402104105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31440402104131) 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, 148711992 + ... + 148923259.

It is an arithmetic number, because the mean of its divisors is an integer number (5895187027551).

Almost surely, 2^{31440402104134} is an apocalyptic number.

31440402104134 is a deficient number, since it is larger than the sum of its proper divisors (15721094116274).

31440402104134 is a wasteful number, since it uses less digits than its factorization.

31440402104134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297688070.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 31440402104134 its reverse (43140120404413), we get a palindrome (74580522508547).

The spelling of 31440402104134 in words is "thirty-one trillion, four hundred forty billion, four hundred two million, one hundred four thousand, one hundred thirty-four".