31404202414031 has 4 divisors (see below), whose sum is σ = 31455939156672. Its totient is φ = 31352465671392.

The previous prime is 31404202414021. The next prime is 31404202414099. The reversal of 31404202414031 is 13041420240413.

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 31404202414031 - 2¹⁸ = 31404202151887 is a prime.

It is a super-2 number, since 2×31404202414031² (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 = 31404202413985 and 31404202414003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31404202414021) 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, 25868370410 + ... + 25868371623.

It is an arithmetic number, because the mean of its divisors is an integer number (7863984789168).

Almost surely, 2^{31404202414031} is an apocalyptic number.

31404202414031 is a deficient number, since it is larger than the sum of its proper divisors (51736742641).

31404202414031 is an equidigital number, since it uses as much as digits as its factorization.

31404202414031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51736742640.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 31404202414031 its reverse (13041420240413), we get a palindrome (44445622654444).

The spelling of 31404202414031 in words is "thirty-one trillion, four hundred four billion, two hundred two million, four hundred fourteen thousand, thirty-one".