1020403530311 has 16 divisors (see below), whose sum is σ = 1114352125440. Its totient is φ = 926652782880.

The previous prime is 1020403530301. The next prime is 1020403530313. The reversal of 1020403530311 is 1130353040201.

It is a de Polignac number, because none of the positive numbers 2^k-1020403530311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020403530313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74545910 + ... + 74559596.

It is an arithmetic number, because the mean of its divisors is an integer number (69647007840).

Almost surely, 2^{1020403530311} is an apocalyptic number.

1020403530311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1020403530311 is a deficient number, since it is larger than the sum of its proper divisors (93948595129).

1020403530311 is a wasteful number, since it uses less digits than its factorization.

1020403530311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20414.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 1020403530311 its reverse (1130353040201), we get a palindrome (2150756570512).

The spelling of 1020403530311 in words is "one trillion, twenty billion, four hundred three million, five hundred thirty thousand, three hundred eleven".