31214120141431 has 4 divisors (see below), whose sum is σ = 31281537248032. Its totient is φ = 31146703034832.

The previous prime is 31214120141401. The next prime is 31214120141473. The reversal of 31214120141431 is 13414102141213.

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 31214120141431 - 2⁹ = 31214120140919 is a prime.

It is a super-2 number, since 2×31214120141431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31214120141431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31214120141401) 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, 33708552606 + ... + 33708553531.

It is an arithmetic number, because the mean of its divisors is an integer number (7820384312008).

Almost surely, 2^{31214120141431} is an apocalyptic number.

31214120141431 is a deficient number, since it is larger than the sum of its proper divisors (67417106601).

31214120141431 is an equidigital number, since it uses as much as digits as its factorization.

31214120141431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67417106600.

The product of its (nonzero) digits is 2304, while the sum is 28.

Adding to 31214120141431 its reverse (13414102141213), we get a palindrome (44628222282644).

The spelling of 31214120141431 in words is "thirty-one trillion, two hundred fourteen billion, one hundred twenty million, one hundred forty-one thousand, four hundred thirty-one".