1021042030311 has 16 divisors (see below), whose sum is σ = 1512770129920. Its totient is φ = 680642815320.

The previous prime is 1021042030303. The next prime is 1021042030331. The reversal of 1021042030311 is 1130302401201.

1021042030311 is a `hidden beast` number, since 1 + 0 + 210 + 420 + 3 + 0 + 31 + 1 = 666.

It is not a de Polignac number, because 1021042030311 - 2³ = 1021042030303 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 (1021042030331) 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, 1078345 + ... + 1790226.

It is an arithmetic number, because the mean of its divisors is an integer number (94548133120).

Almost surely, 2^{1021042030311} is an apocalyptic number.

1021042030311 is a deficient number, since it is larger than the sum of its proper divisors (491728099609).

1021042030311 is a wasteful number, since it uses less digits than its factorization.

1021042030311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2881763 (or 2881757 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1021042030311 its reverse (1130302401201), we get a palindrome (2151344431512).

The spelling of 1021042030311 in words is "one trillion, twenty-one billion, forty-two million, thirty thousand, three hundred eleven".