20190929200911 has 24 divisors (see below), whose sum is σ = 33360016195584. Its totient is φ = 11527649744400.

The previous prime is 20190929200873. The next prime is 20190929200933. The reversal of 20190929200911 is 11900292909102.

It is not a de Polignac number, because 20190929200911 - 2¹⁵ = 20190929168143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20190929200961) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139150311 + ... + 139295336.

It is an arithmetic number, because the mean of its divisors is an integer number (1390000674816).

Almost surely, 2^{20190929200911} is an apocalyptic number.

20190929200911 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20190929200911 is a deficient number, since it is larger than the sum of its proper divisors (13169086994673).

20190929200911 is a wasteful number, since it uses less digits than its factorization.

20190929200911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278446811 (or 278446808 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 45.

The spelling of 20190929200911 in words is "twenty trillion, one hundred ninety billion, nine hundred twenty-nine million, two hundred thousand, nine hundred eleven".