31113211232002 has 4 divisors (see below), whose sum is σ = 46669816848006. Its totient is φ = 15556605616000.

The previous prime is 31113211231981. The next prime is 31113211232011. The reversal of 31113211232002 is 20023211231113.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22072791952561 + 9040419279441 = 4698169^2 + 3006729^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7778302807999 + ... + 7778302808002.

Almost surely, 2^{31113211232002} is an apocalyptic number.

31113211232002 is a deficient number, since it is larger than the sum of its proper divisors (15556605616004).

31113211232002 is a wasteful number, since it uses less digits than its factorization.

31113211232002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15556605616003.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 31113211232002 its reverse (20023211231113), we get a palindrome (51136422463115).

The spelling of 31113211232002 in words is "thirty-one trillion, one hundred thirteen billion, two hundred eleven million, two hundred thirty-two thousand, two".