31421204134 has 8 divisors (see below), whose sum is σ = 49612427640. Its totient is φ = 14883728256.

The previous prime is 31421204123. The next prime is 31421204147. The reversal of 31421204134 is 43140212413.

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 = 31421204099 and 31421204108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413436859 + ... + 413436934.

It is an arithmetic number, because the mean of its divisors is an integer number (6201553455).

Almost surely, 2^31421204134 is an apocalyptic number.

31421204134 is a deficient number, since it is larger than the sum of its proper divisors (18191223506).

31421204134 is a wasteful number, since it uses less digits than its factorization.

31421204134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826873814.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 31421204134 its reverse (43140212413), we get a palindrome (74561416547).

The spelling of 31421204134 in words is "thirty-one billion, four hundred twenty-one million, two hundred four thousand, one hundred thirty-four".