31423326251106 has 128 divisors (see below), whose sum is σ = 68462473605120. Its totient is φ = 9582865339392.

The previous prime is 31423326251081. The next prime is 31423326251111. The reversal of 31423326251106 is 60115262332413.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 354392730 + ... + 354481386.

It is an arithmetic number, because the mean of its divisors is an integer number (534863075040).

Almost surely, 2^{31423326251106} is an apocalyptic number.

31423326251106 is an abundant number, since it is smaller than the sum of its proper divisors (37039147354014).

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

31423326251106 is a wasteful number, since it uses less digits than its factorization.

31423326251106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89608.

The product of its (nonzero) digits is 155520, while the sum is 39.

Adding to 31423326251106 its reverse (60115262332413), we get a palindrome (91538588583519).

The spelling of 31423326251106 in words is "thirty-one trillion, four hundred twenty-three billion, three hundred twenty-six million, two hundred fifty-one thousand, one hundred six".