1000236028421 has 16 divisors (see below), whose sum is σ = 1162382581248. Its totient is φ = 843001311600.

The previous prime is 1000236028409. The next prime is 1000236028439. The reversal of 1000236028421 is 1248206320001.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1000236028421 is a prime.

It is a super-2 number, since 2×1000236028421² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000236025421) 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, 3956975 + ... + 4202156.

It is an arithmetic number, because the mean of its divisors is an integer number (72648911328).

Almost surely, 2^{1000236028421} is an apocalyptic number.

It is an amenable number.

1000236028421 is a deficient number, since it is larger than the sum of its proper divisors (162146552827).

1000236028421 is an equidigital number, since it uses as much as digits as its factorization.

1000236028421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8159432.

The product of its (nonzero) digits is 4608, while the sum is 29.

The spelling of 1000236028421 in words is "one trillion, two hundred thirty-six million, twenty-eight thousand, four hundred twenty-one".