31403065505141 has 4 divisors (see below), whose sum is σ = 34257889641984. Its totient is φ = 28548241368300.

The previous prime is 31403065505117. The next prime is 31403065505219. The reversal of 31403065505141 is 14150556030413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31403065505141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31403065505095 and 31403065505104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31403065505111) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1427412068405 + ... + 1427412068426.

It is an arithmetic number, because the mean of its divisors is an integer number (8564472410496).

Almost surely, 2^{31403065505141} is an apocalyptic number.

It is an amenable number.

31403065505141 is a deficient number, since it is larger than the sum of its proper divisors (2854824136843).

31403065505141 is a wasteful number, since it uses less digits than its factorization.

31403065505141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2854824136842.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 31403065505141 in words is "thirty-one trillion, four hundred three billion, sixty-five million, five hundred five thousand, one hundred forty-one".