20200012001154 has 24 divisors (see below), whose sum is σ = 43838090234172. Its totient is φ = 6722353092960.

The previous prime is 20200012001153. The next prime is 20200012001243. The reversal of 20200012001154 is 45110021000202.

It can be written as a sum of positive squares in 2 ways, for example, as 11201973894225 + 8998038106929 = 3346935^2 + 2999673^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20200012001153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 915342057 + ... + 915364124.

Almost surely, 2^{20200012001154} is an apocalyptic number.

20200012001154 is an abundant number, since it is smaller than the sum of its proper divisors (23638078233018).

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

20200012001154 is a wasteful number, since it uses less digits than its factorization.

20200012001154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830706802 (or 1830706799 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 20200012001154 its reverse (45110021000202), we get a palindrome (65310033001356).

The spelling of 20200012001154 in words is "twenty trillion, two hundred billion, twelve million, one thousand, one hundred fifty-four".