1011021213045 has 32 divisors (see below), whose sum is σ = 1640666824704. Its totient is φ = 531535995200.

The previous prime is 1011021213043. The next prime is 1011021213047. The reversal of 1011021213045 is 5403121201101.

It is an interprime number because it is at equal distance from previous prime (1011021213043) and next prime (1011021213047).

It is not a de Polignac number, because 1011021213045 - 2¹ = 1011021213043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011021213043) 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, 7291534 + ... + 7428896.

It is an arithmetic number, because the mean of its divisors is an integer number (51270838272).

Almost surely, 2^{1011021213045} is an apocalyptic number.

1011021213045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1011021213045 is a deficient number, since it is larger than the sum of its proper divisors (629645611659).

1011021213045 is a wasteful number, since it uses less digits than its factorization.

1011021213045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144353.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 1011021213045 its reverse (5403121201101), we get a palindrome (6414142414146).

The spelling of 1011021213045 in words is "one trillion, eleven billion, twenty-one million, two hundred thirteen thousand, forty-five".