31125146106 has 16 divisors (see below), whose sum is σ = 64956826944. Its totient is φ = 9923959584.

The previous prime is 31125146093. The next prime is 31125146111. The reversal of 31125146106 is 60164152113.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112772131 + ... + 112772406.

It is an arithmetic number, because the mean of its divisors is an integer number (4059801684).

Almost surely, 2^31125146106 is an apocalyptic number.

31125146106 is an abundant number, since it is smaller than the sum of its proper divisors (33831680838).

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

31125146106 is a wasteful number, since it uses less digits than its factorization.

31125146106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225544565.

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 31125146106 its reverse (60164152113), we get a palindrome (91289298219).

The spelling of 31125146106 in words is "thirty-one billion, one hundred twenty-five million, one hundred forty-six thousand, one hundred six".