33121031010 has 16 divisors (see below), whose sum is σ = 79490474496. Its totient is φ = 8832274928.

The previous prime is 33121030991. The next prime is 33121031023. The reversal of 33121031010 is 1013012133.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552017154 + ... + 552017213.

It is an arithmetic number, because the mean of its divisors is an integer number (4968154656).

Almost surely, 2^33121031010 is an apocalyptic number.

33121031010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

33121031010 is an abundant number, since it is smaller than the sum of its proper divisors (46369443486).

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

33121031010 is a wasteful number, since it uses less digits than its factorization.

33121031010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104034377.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 33121031010 its reverse (1013012133), we get a palindrome (34134043143).

The spelling of 33121031010 in words is "thirty-three billion, one hundred twenty-one million, thirty-one thousand, ten".