331132021031021 has 16 divisors (see below), whose sum is σ = 384851701418880. Its totient is φ = 279016140291840.

The previous prime is 331132021030999. The next prime is 331132021031039. The reversal of 331132021031021 is 120130120231133.

It is not a de Polignac number, because 331132021031021 - 2⁶ = 331132021030957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331132021031051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249308801 + ... + 250633481.

It is an arithmetic number, because the mean of its divisors is an integer number (24053231338680).

Almost surely, 2^{331132021031021} is an apocalyptic number.

It is an amenable number.

331132021031021 is a deficient number, since it is larger than the sum of its proper divisors (53719680387859).

331132021031021 is a wasteful number, since it uses less digits than its factorization.

331132021031021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1930004.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 331132021031021 its reverse (120130120231133), we get a palindrome (451262141262154).

The spelling of 331132021031021 in words is "three hundred thirty-one trillion, one hundred thirty-two billion, twenty-one million, thirty-one thousand, twenty-one".