1021420332411 has 16 divisors (see below), whose sum is σ = 1406206568448. Its totient is φ = 658802390400.

The previous prime is 1021420332407. The next prime is 1021420332419. The reversal of 1021420332411 is 1142330241201.

It is not a de Polignac number, because 1021420332411 - 2² = 1021420332407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021420332419) 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, 1141575 + ... + 1829216.

It is an arithmetic number, because the mean of its divisors is an integer number (87887910528).

Almost surely, 2^{1021420332411} is an apocalyptic number.

1021420332411 is a deficient number, since it is larger than the sum of its proper divisors (384786236037).

1021420332411 is a wasteful number, since it uses less digits than its factorization.

1021420332411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2974522.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1021420332411 its reverse (1142330241201), we get a palindrome (2163750573612).

The spelling of 1021420332411 in words is "one trillion, twenty-one billion, four hundred twenty million, three hundred thirty-two thousand, four hundred eleven".