20111629143 has 16 divisors (see below), whose sum is σ = 28230917120. Its totient is φ = 12700250496.

The previous prime is 20111629127. The next prime is 20111629159. The reversal of 20111629143 is 34192611102.

It is an interprime number because it is at equal distance from previous prime (20111629127) and next prime (20111629159).

It is not a de Polignac number, because 20111629143 - 2⁴ = 20111629127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20111629143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111629243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 451071 + ... + 493647.

It is an arithmetic number, because the mean of its divisors is an integer number (1764432320).

Almost surely, 2^20111629143 is an apocalyptic number.

20111629143 is a deficient number, since it is larger than the sum of its proper divisors (8119287977).

20111629143 is a wasteful number, since it uses less digits than its factorization.

20111629143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50886.

The product of its (nonzero) digits is 2592, while the sum is 30.

The spelling of 20111629143 in words is "twenty billion, one hundred eleven million, six hundred twenty-nine thousand, one hundred forty-three".