20001030111234 has 48 divisors (see below), whose sum is σ = 44071845854400. Its totient is φ = 6554274219360.

The previous prime is 20001030111197. The next prime is 20001030111287. The reversal of 20001030111234 is 43211103010002.

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

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, 21975552 + ... + 22867595.

It is an arithmetic number, because the mean of its divisors is an integer number (918163455300).

Almost surely, 2^{20001030111234} is an apocalyptic number.

20001030111234 is an abundant number, since it is smaller than the sum of its proper divisors (24070815743166).

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

20001030111234 is a wasteful number, since it uses less digits than its factorization.

20001030111234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44843575 (or 44843572 counting only the distinct ones).

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

Adding to 20001030111234 its reverse (43211103010002), we get a palindrome (63212133121236).

The spelling of 20001030111234 in words is "twenty trillion, one billion, thirty million, one hundred eleven thousand, two hundred thirty-four".