31214002143031 has 4 divisors (see below), whose sum is σ = 31216375664064. Its totient is φ = 31211628622000.

The previous prime is 31214002143029. The next prime is 31214002143041. The reversal of 31214002143031 is 13034120041213.

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

It is a cyclic number.

It is not a de Polignac number, because 31214002143031 - 2¹ = 31214002143029 is a prime.

It is a super-2 number, since 2×31214002143031² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31214002142987 and 31214002143005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31214002143041) 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, 1186740790 + ... + 1186767091.

It is an arithmetic number, because the mean of its divisors is an integer number (7804093916016).

Almost surely, 2^{31214002143031} is an apocalyptic number.

31214002143031 is a deficient number, since it is larger than the sum of its proper divisors (2373521033).

31214002143031 is a wasteful number, since it uses less digits than its factorization.

31214002143031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373521032.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 31214002143031 its reverse (13034120041213), we get a palindrome (44248122184244).

The spelling of 31214002143031 in words is "thirty-one trillion, two hundred fourteen billion, two million, one hundred forty-three thousand, thirty-one".