31144121422 has 16 divisors (see below), whose sum is σ = 47164199472. Its totient is φ = 15422924160.

The previous prime is 31144121383. The next prime is 31144121429. The reversal of 31144121422 is 22412144113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31144121429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262213 + ... + 361999.

It is an arithmetic number, because the mean of its divisors is an integer number (2947762467).

Almost surely, 2^31144121422 is an apocalyptic number.

31144121422 is a deficient number, since it is larger than the sum of its proper divisors (16020078050).

31144121422 is a wasteful number, since it uses less digits than its factorization.

31144121422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101283.

The product of its digits is 1536, while the sum is 25.

Adding to 31144121422 its reverse (22412144113), we get a palindrome (53556265535).

The spelling of 31144121422 in words is "thirty-one billion, one hundred forty-four million, one hundred twenty-one thousand, four hundred twenty-two".