31143000021214 has 4 divisors (see below), whose sum is σ = 46714500031824. Its totient is φ = 15571500010606.

The previous prime is 31143000021173. The next prime is 31143000021229. The reversal of 31143000021214 is 41212000034113.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7785750005302 + ... + 7785750005305.

It is an arithmetic number, because the mean of its divisors is an integer number (11678625007956).

Almost surely, 2^{31143000021214} is an apocalyptic number.

31143000021214 is a deficient number, since it is larger than the sum of its proper divisors (15571500010610).

31143000021214 is a wasteful number, since it uses less digits than its factorization.

31143000021214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15571500010609.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 31143000021214 its reverse (41212000034113), we get a palindrome (72355000055327).

The spelling of 31143000021214 in words is "thirty-one trillion, one hundred forty-three billion, twenty-one thousand, two hundred fourteen".