1020111121101 has 32 divisors (see below), whose sum is σ = 1390506773760. Its totient is φ = 665078515200.

The previous prime is 1020111121069. The next prime is 1020111121147. The reversal of 1020111121101 is 1011211110201.

It is not a de Polignac number, because 1020111121101 - 2⁵ = 1020111121069 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020111121151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22555731 + ... + 22600911.

It is an arithmetic number, because the mean of its divisors is an integer number (43453336680).

Almost surely, 2^{1020111121101} is an apocalyptic number.

It is an amenable number.

1020111121101 is a deficient number, since it is larger than the sum of its proper divisors (370395652659).

1020111121101 is a wasteful number, since it uses less digits than its factorization.

1020111121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46197.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1020111121101 its reverse (1011211110201), we get a palindrome (2031322231302).

The spelling of 1020111121101 in words is "one trillion, twenty billion, one hundred eleven million, one hundred twenty-one thousand, one hundred one".