31011110545442 has 16 divisors (see below), whose sum is σ = 50653356609600. Its totient is φ = 14182939849680.

The previous prime is 31011110545439. The next prime is 31011110545543. The reversal of 31011110545442 is 24454501111013.

It is a junction number, because it is equal to n+sod(n) for n = 31011110545399 and 31011110545408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14070375734 + ... + 14070377937.

It is an arithmetic number, because the mean of its divisors is an integer number (3165834788100).

Almost surely, 2^{31011110545442} is an apocalyptic number.

31011110545442 is a deficient number, since it is larger than the sum of its proper divisors (19642246064158).

31011110545442 is a wasteful number, since it uses less digits than its factorization.

31011110545442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28140753721.

The product of its (nonzero) digits is 9600, while the sum is 32.

Adding to 31011110545442 its reverse (24454501111013), we get a palindrome (55465611656455).

The spelling of 31011110545442 in words is "thirty-one trillion, eleven billion, one hundred ten million, five hundred forty-five thousand, four hundred forty-two".