20203101231102 has 48 divisors (see below), whose sum is σ = 44826449382000. Its totient is φ = 6572602624896.

The previous prime is 20203101231097. The next prime is 20203101231139. The reversal of 20203101231102 is 20113210130202.

20203101231102 is a `hidden beast` number, since 2 + 0 + 20 + 310 + 1 + 231 + 102 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9231727 + ... + 11208522.

It is an arithmetic number, because the mean of its divisors is an integer number (933884362125).

Almost surely, 2^{20203101231102} is an apocalyptic number.

20203101231102 is an abundant number, since it is smaller than the sum of its proper divisors (24623348150898).

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

20203101231102 is a wasteful number, since it uses less digits than its factorization.

20203101231102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20441577 (or 20441574 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20203101231102 its reverse (20113210130202), we get a palindrome (40316311361304).

The spelling of 20203101231102 in words is "twenty trillion, two hundred three billion, one hundred one million, two hundred thirty-one thousand, one hundred two".