20031033221078 has 16 divisors (see below), whose sum is σ = 33084391322304. Its totient is φ = 9019921500360.

The previous prime is 20031033221077. The next prime is 20031033221099. The reversal of 20031033221078 is 87012233013002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031033221077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4254677600 + ... + 4254682307.

It is an arithmetic number, because the mean of its divisors is an integer number (2067774457644).

Almost surely, 2^{20031033221078} is an apocalyptic number.

20031033221078 is a deficient number, since it is larger than the sum of its proper divisors (13053358101226).

20031033221078 is a wasteful number, since it uses less digits than its factorization.

20031033221078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8509360027.

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 20031033221078 in words is "twenty trillion, thirty-one billion, thirty-three million, two hundred twenty-one thousand, seventy-eight".