31242003432 has 32 divisors (see below), whose sum is σ = 78386992800. Its totient is φ = 10376403264.

The previous prime is 31242003431. The next prime is 31242003461. The reversal of 31242003432 is 23430024213.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (31242003431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2343082 + ... + 2356377.

It is an arithmetic number, because the mean of its divisors is an integer number (2449593525).

Almost surely, 2^31242003432 is an apocalyptic number.

It is an amenable number.

31242003432 is an abundant number, since it is smaller than the sum of its proper divisors (47144989368).

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

31242003432 is a wasteful number, since it uses less digits than its factorization.

31242003432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4699745 (or 4699741 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 31242003432 its reverse (23430024213), we get a palindrome (54672027645).

The spelling of 31242003432 in words is "thirty-one billion, two hundred forty-two million, three thousand, four hundred thirty-two".