31112002 has 8 divisors (see below), whose sum is σ = 46842300. Its totient is φ = 15497904.

The previous prime is 31111999. The next prime is 31112009. The reversal of 31112002 is 20021113.

It can be written as a sum of positive squares in 2 ways, for example, as 29149201 + 1962801 = 5399^2 + 1401^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 31112002.

It is not an unprimeable number, because it can be changed into a prime (31112009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28377 + ... + 29452.

Almost surely, 2^31112002 is an apocalyptic number.

31112002 is a deficient number, since it is larger than the sum of its proper divisors (15730298).

31112002 is a wasteful number, since it uses less digits than its factorization.

31112002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58100.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 31112002 is about 5577.8133708470. The cubic root of 31112002 is about 314.5159340933.

Adding to 31112002 its reverse (20021113), we get a palindrome (51133115).

The spelling of 31112002 in words is "thirty-one million, one hundred twelve thousand, two".