20011121303010 has 64 divisors (see below), whose sum is σ = 50875412435712. Its totient is φ = 5020066052096.

The previous prime is 20011121302943. The next prime is 20011121303021. The reversal of 20011121303010 is 1030312111002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8014254 + ... + 10210313.

It is an arithmetic number, because the mean of its divisors is an integer number (794928319308).

Almost surely, 2^{20011121303010} is an apocalyptic number.

20011121303010 is an abundant number, since it is smaller than the sum of its proper divisors (30864291132702).

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

20011121303010 is a wasteful number, since it uses less digits than its factorization.

20011121303010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18226747.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 20011121303010 its reverse (1030312111002), we get a palindrome (21041433414012).

The spelling of 20011121303010 in words is "twenty trillion, eleven billion, one hundred twenty-one million, three hundred three thousand, ten".