20111402231102 has 16 divisors (see below), whose sum is σ = 37128742580832. Its totient is φ = 7956159124320.

The previous prime is 20111402231083. The next prime is 20111402231143. The reversal of 20111402231102 is 20113220411102.

It is a super-2 number, since 2×20111402231102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55251104849 + ... + 55251105212.

It is an arithmetic number, because the mean of its divisors is an integer number (2320546411302).

Almost surely, 2^{20111402231102} is an apocalyptic number.

20111402231102 is a deficient number, since it is larger than the sum of its proper divisors (17017340349730).

20111402231102 is a wasteful number, since it uses less digits than its factorization.

20111402231102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110502210083.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 20111402231102 its reverse (20113220411102), we get a palindrome (40224622642204).

The spelling of 20111402231102 in words is "twenty trillion, one hundred eleven billion, four hundred two million, two hundred thirty-one thousand, one hundred two".