31145151131032 has 16 divisors (see below), whose sum is σ = 58397396464800. Its totient is φ = 15572512073760.

The previous prime is 31145151131021. The next prime is 31145151131057. The reversal of 31145151131032 is 23013115154113.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31145151130985 and 31145151131003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5818432 + ... + 9805327.

It is an arithmetic number, because the mean of its divisors is an integer number (3649837279050).

Almost surely, 2^{31145151131032} is an apocalyptic number.

It is an amenable number.

31145151131032 is a deficient number, since it is larger than the sum of its proper divisors (27252245333768).

31145151131032 is a wasteful number, since it uses less digits than its factorization.

31145151131032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15872946 (or 15872942 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

Adding to 31145151131032 its reverse (23013115154113), we get a palindrome (54158266285145).

The spelling of 31145151131032 in words is "thirty-one trillion, one hundred forty-five billion, one hundred fifty-one million, one hundred thirty-one thousand, thirty-two".