31404222231423 has 16 divisors (see below), whose sum is σ = 41886219398400. Its totient is φ = 20929187301440.

The previous prime is 31404222231419. The next prime is 31404222231439. The reversal of 31404222231423 is 32413222240413.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 31404222231423 - 2² = 31404222231419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31404222231623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208828123 + ... + 208978451.

It is an arithmetic number, because the mean of its divisors is an integer number (2617888712400).

Almost surely, 2^{31404222231423} is an apocalyptic number.

31404222231423 is a deficient number, since it is larger than the sum of its proper divisors (10481997166977).

31404222231423 is a wasteful number, since it uses less digits than its factorization.

31404222231423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173022.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 31404222231423 its reverse (32413222240413), we get a palindrome (63817444471836).

The spelling of 31404222231423 in words is "thirty-one trillion, four hundred four billion, two hundred twenty-two million, two hundred thirty-one thousand, four hundred twenty-three".