1031121221032 has 32 divisors (see below), whose sum is σ = 2280821137920. Its totient is φ = 427653961920.

The previous prime is 1031121221027. The next prime is 1031121221099. The reversal of 1031121221032 is 2301221211301.

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, 296980183 + ... + 296983654.

It is an arithmetic number, because the mean of its divisors is an integer number (71275660560).

Almost surely, 2^{1031121221032} is an apocalyptic number.

It is an amenable number.

1031121221032 is an abundant number, since it is smaller than the sum of its proper divisors (1249699916888).

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

1031121221032 is a wasteful number, since it uses less digits than its factorization.

1031121221032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593963881 (or 593963877 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1031121221032 its reverse (2301221211301), we get a palindrome (3332342432333).

It can be divided in two parts, 1031121 and 221032, that added together give a triangular number (1252153 = T₁₅₈₂).

The spelling of 1031121221032 in words is "one trillion, thirty-one billion, one hundred twenty-one million, two hundred twenty-one thousand, thirty-two".