31012030145532 has 48 divisors (see below), whose sum is σ = 73558255220352. Its totient is φ = 10166413433280.

The previous prime is 31012030145531. The next prime is 31012030145567. The reversal of 31012030145532 is 23554103021013.

It is a self number, because there is not a number n which added to its sum of digits gives 31012030145532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31012030145531) 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, 2035963 + ... + 8134445.

It is an arithmetic number, because the mean of its divisors is an integer number (1532463650424).

Almost surely, 2^{31012030145532} is an apocalyptic number.

It is an amenable number.

31012030145532 is an abundant number, since it is smaller than the sum of its proper divisors (42546225074820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31012030145532 is a wasteful number, since it uses less digits than its factorization.

31012030145532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6105498 (or 6105496 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 31012030145532 its reverse (23554103021013), we get a palindrome (54566133166545).

The spelling of 31012030145532 in words is "thirty-one trillion, twelve billion, thirty million, one hundred forty-five thousand, five hundred thirty-two".