140432511212 has 48 divisors (see below), whose sum is σ = 288984476928. Its totient is φ = 58451440320.

The previous prime is 140432511097. The next prime is 140432511221. The reversal of 140432511212 is 212115234041.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 442787 + ... + 690597.

It is an arithmetic number, because the mean of its divisors is an integer number (6020509936).

Almost surely, 2^140432511212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140432511212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144492238464).

140432511212 is an abundant number, since it is smaller than the sum of its proper divisors (148551965716).

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

140432511212 is a wasteful number, since it uses less digits than its factorization.

140432511212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248406 (or 248404 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 140432511212 its reverse (212115234041), we get a palindrome (352547745253).

The spelling of 140432511212 in words is "one hundred forty billion, four hundred thirty-two million, five hundred eleven thousand, two hundred twelve".