31021441430132 has 24 divisors (see below), whose sum is σ = 54773759243112. Its totient is φ = 15372380880000.

The previous prime is 31021441430117. The next prime is 31021441430149. The reversal of 31021441430132 is 23103414412013.

It can be written as a sum of positive squares in 4 ways, for example, as 227754199696 + 30793687230436 = 477236^2 + 5549206^2 .

It is a super-2 number, since 2×31021441430132² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31021441430095 and 31021441430104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72906119 + ... + 73330382.

It is an arithmetic number, because the mean of its divisors is an integer number (2282239968463).

Almost surely, 2^{31021441430132} is an apocalyptic number.

It is an amenable number.

31021441430132 is a deficient number, since it is larger than the sum of its proper divisors (23752317812980).

31021441430132 is a wasteful number, since it uses less digits than its factorization.

31021441430132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146236979 (or 146236977 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 31021441430132 its reverse (23103414412013), we get a palindrome (54124855842145).

The spelling of 31021441430132 in words is "thirty-one trillion, twenty-one billion, four hundred forty-one million, four hundred thirty thousand, one hundred thirty-two".