20112551435 has 24 divisors (see below), whose sum is σ = 24837003648. Its totient is φ = 15634841600.

The previous prime is 20112551401. The next prime is 20112551443. The reversal of 20112551435 is 53415521102.

It is not a de Polignac number, because 20112551435 - 2¹⁰ = 20112550411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20112551398 and 20112551407.

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, 2155430 + ... + 2164740.

It is an arithmetic number, because the mean of its divisors is an integer number (1034875152).

Almost surely, 2^20112551435 is an apocalyptic number.

20112551435 is a deficient number, since it is larger than the sum of its proper divisors (4724452213).

20112551435 is an equidigital number, since it uses as much as digits as its factorization.

20112551435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9655 (or 9614 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 20112551435 in words is "twenty billion, one hundred twelve million, five hundred fifty-one thousand, four hundred thirty-five".