31121233232066 has 8 divisors (see below), whose sum is σ = 46731144306960. Its totient is φ = 15544185129748.

The previous prime is 31121233232053. The next prime is 31121233232099. The reversal of 31121233232066 is 66023233212113.

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

It is a super-2 number, since 2×31121233232066² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8215740776 + ... + 8215744563.

It is an arithmetic number, because the mean of its divisors is an integer number (5841393038370).

Almost surely, 2^{31121233232066} is an apocalyptic number.

31121233232066 is a deficient number, since it is larger than the sum of its proper divisors (15609911074894).

31121233232066 is a wasteful number, since it uses less digits than its factorization.

31121233232066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16431486288.

The product of its (nonzero) digits is 46656, while the sum is 35.

Adding to 31121233232066 its reverse (66023233212113), we get a palindrome (97144466444179).

The spelling of 31121233232066 in words is "thirty-one trillion, one hundred twenty-one billion, two hundred thirty-three million, two hundred thirty-two thousand, sixty-six".