1020012111011 has 8 divisors (see below), whose sum is σ = 1058116920000. Its totient is φ = 982537133760.

The previous prime is 1020012111007. The next prime is 1020012111017. The reversal of 1020012111011 is 1101112100201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020012111011 - 2² = 1020012111007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020012110983 and 1020012111001.

It is not an unprimeable number, because it can be changed into a prime (1020012111017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157454636 + ... + 157461113.

It is an arithmetic number, because the mean of its divisors is an integer number (132264615000).

Almost surely, 2^{1020012111011} is an apocalyptic number.

1020012111011 is a deficient number, since it is larger than the sum of its proper divisors (38104808989).

1020012111011 is an equidigital number, since it uses as much as digits as its factorization.

1020012111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314915869.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1020012111011 its reverse (1101112100201), we get a palindrome (2121124211212).

The spelling of 1020012111011 in words is "one trillion, twenty billion, twelve million, one hundred eleven thousand, eleven".