31101242 has 8 divisors (see below), whose sum is σ = 46826100. Its totient is φ = 15492544.

The previous prime is 31101197. The next prime is 31101251. The reversal of 31101242 is 24210113.

It can be written as a sum of positive squares in 2 ways, for example, as 28633201 + 2468041 = 5351^2 + 1571^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28367 + ... + 29442.

Almost surely, 2^31101242 is an apocalyptic number.

31101242 is a deficient number, since it is larger than the sum of its proper divisors (15724858).

31101242 is a wasteful number, since it uses less digits than its factorization.

31101242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58080.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 31101242 is about 5576.8487517594. The cubic root of 31101242 is about 314.4796717567.

Adding to 31101242 its reverse (24210113), we get a palindrome (55311355).

The spelling of 31101242 in words is "thirty-one million, one hundred one thousand, two hundred forty-two".