1012203020311 has 4 divisors (see below), whose sum is σ = 1156803451792. Its totient is φ = 867602588832.

The previous prime is 1012203020291. The next prime is 1012203020369. The reversal of 1012203020311 is 1130203022101.

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

It is not a de Polignac number, because 1012203020311 - 2³¹ = 1010055536663 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 (1012203026311) 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, 72300215730 + ... + 72300215743.

It is an arithmetic number, because the mean of its divisors is an integer number (289200862948).

Almost surely, 2^{1012203020311} is an apocalyptic number.

1012203020311 is a deficient number, since it is larger than the sum of its proper divisors (144600431481).

1012203020311 is an equidigital number, since it uses as much as digits as its factorization.

1012203020311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144600431480.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1012203020311 its reverse (1130203022101), we get a palindrome (2142406042412).

The spelling of 1012203020311 in words is "one trillion, twelve billion, two hundred three million, twenty thousand, three hundred eleven".