31433054323242 has 64 divisors (see below), whose sum is σ = 74959025831424. Its totient is φ = 8661231944640.

The previous prime is 31433054323201. The next prime is 31433054323243. The reversal of 31433054323242 is 24232345033413.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 31433054323242.

It is not an unprimeable number, because it can be changed into a prime (31433054323243) 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 31 ways as a sum of consecutive naturals, for example, 273339988 + ... + 273454959.

It is an arithmetic number, because the mean of its divisors is an integer number (1171234778616).

Almost surely, 2^{31433054323242} is an apocalyptic number.

31433054323242 is an abundant number, since it is smaller than the sum of its proper divisors (43525971508182).

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

31433054323242 is a wasteful number, since it uses less digits than its factorization.

31433054323242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546795043.

The product of its (nonzero) digits is 622080, while the sum is 39.

Adding to 31433054323242 its reverse (24232345033413), we get a palindrome (55665399356655).

The spelling of 31433054323242 in words is "thirty-one trillion, four hundred thirty-three billion, fifty-four million, three hundred twenty-three thousand, two hundred forty-two".