1011012201103 has 4 divisors (see below), whose sum is σ = 1011068899560. Its totient is φ = 1010955502648.

The previous prime is 1011012201061. The next prime is 1011012201127. The reversal of 1011012201103 is 3011022101101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011012201103 is a prime.

It is a super-3 number, since 3×1011012201103³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011012201163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28322473 + ... + 28358146.

It is an arithmetic number, because the mean of its divisors is an integer number (252767224890).

Almost surely, 2^{1011012201103} is an apocalyptic number.

1011012201103 is a deficient number, since it is larger than the sum of its proper divisors (56698457).

1011012201103 is an equidigital number, since it uses as much as digits as its factorization.

1011012201103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56698456.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1011012201103 its reverse (3011022101101), we get a palindrome (4022034302204).

The spelling of 1011012201103 in words is "one trillion, eleven billion, twelve million, two hundred one thousand, one hundred three".