31145422201532 has 6 divisors (see below), whose sum is σ = 54504488852688. Its totient is φ = 15572711100764.

The previous prime is 31145422201489. The next prime is 31145422201541. The reversal of 31145422201532 is 23510222454113.

It is a super-2 number, since 2×31145422201532² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31145422201492 and 31145422201501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3893177775188 + ... + 3893177775195.

It is an arithmetic number, because the mean of its divisors is an integer number (9084081475448).

Almost surely, 2^{31145422201532} is an apocalyptic number.

It is an amenable number.

31145422201532 is a deficient number, since it is larger than the sum of its proper divisors (23359066651156).

31145422201532 is a wasteful number, since it uses less digits than its factorization.

31145422201532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7786355550387 (or 7786355550385 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 31145422201532 its reverse (23510222454113), we get a palindrome (54655644655645).

The spelling of 31145422201532 in words is "thirty-one trillion, one hundred forty-five billion, four hundred twenty-two million, two hundred one thousand, five hundred thirty-two".