31012421014 has 4 divisors (see below), whose sum is σ = 46518631524. Its totient is φ = 15506210506.

The previous prime is 31012420979. The next prime is 31012421021. The reversal of 31012421014 is 41012421013.

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

It is a junction number, because it is equal to n+sod(n) for n = 31012420982 and 31012421000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7753105252 + ... + 7753105255.

It is an arithmetic number, because the mean of its divisors is an integer number (11629657881).

Almost surely, 2^31012421014 is an apocalyptic number.

31012421014 is a deficient number, since it is larger than the sum of its proper divisors (15506210510).

31012421014 is a wasteful number, since it uses less digits than its factorization.

31012421014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15506210509.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 31012421014 its reverse (41012421013), we get a palindrome (72024842027).

Subtracting 31012421014 from its reverse (41012421013), we obtain a palindrome (9999999999).

The spelling of 31012421014 in words is "thirty-one billion, twelve million, four hundred twenty-one thousand, fourteen".