31553233142 has 8 divisors (see below), whose sum is σ = 48336867936. Its totient is φ = 15440943832.

The previous prime is 31553233141. The next prime is 31553233147. The reversal of 31553233142 is 24133235513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 31553233099 and 31553233108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31553233141) 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 3 ways as a sum of consecutive naturals, for example, 167836253 + ... + 167836440.

It is an arithmetic number, because the mean of its divisors is an integer number (6042108492).

Almost surely, 2^31553233142 is an apocalyptic number.

31553233142 is a deficient number, since it is larger than the sum of its proper divisors (16783634794).

31553233142 is a wasteful number, since it uses less digits than its factorization.

31553233142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335672742.

The product of its digits is 32400, while the sum is 32.

Adding to 31553233142 its reverse (24133235513), we get a palindrome (55686468655).

The spelling of 31553233142 in words is "thirty-one billion, five hundred fifty-three million, two hundred thirty-three thousand, one hundred forty-two".