31320112151541 has 16 divisors (see below), whose sum is σ = 41770963075968. Its totient is φ = 20874668692800.

The previous prime is 31320112151539. The next prime is 31320112151591. The reversal of 31320112151541 is 14515121102313.

It is not a de Polignac number, because 31320112151541 - 2¹ = 31320112151539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31320112151499 and 31320112151508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31320112151591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199335151 + ... + 199492211.

It is an arithmetic number, because the mean of its divisors is an integer number (2610685192248).

Almost surely, 2^{31320112151541} is an apocalyptic number.

It is an amenable number.

31320112151541 is a deficient number, since it is larger than the sum of its proper divisors (10450850924427).

31320112151541 is a wasteful number, since it uses less digits than its factorization.

31320112151541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173852.

The product of its (nonzero) digits is 3600, while the sum is 30.

Adding to 31320112151541 its reverse (14515121102313), we get a palindrome (45835233253854).

The spelling of 31320112151541 in words is "thirty-one trillion, three hundred twenty billion, one hundred twelve million, one hundred fifty-one thousand, five hundred forty-one".