204402031021001 has 16 divisors (see below), whose sum is σ = 226315777242048. Its totient is φ = 183043664179200.

The previous prime is 204402031020991. The next prime is 204402031021007. The reversal of 204402031021001 is 100120130204402.

It is not a de Polignac number, because 204402031021001 - 2²⁶ = 204401963912137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204402031021007) 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, 44508461 + ... + 48885653.

It is an arithmetic number, because the mean of its divisors is an integer number (14144736077628).

Almost surely, 2^{204402031021001} is an apocalyptic number.

It is an amenable number.

204402031021001 is a deficient number, since it is larger than the sum of its proper divisors (21913746221047).

204402031021001 is a wasteful number, since it uses less digits than its factorization.

204402031021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4440632.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 204402031021001 its reverse (100120130204402), we get a palindrome (304522161225403).

The spelling of 204402031021001 in words is "two hundred four trillion, four hundred two billion, thirty-one million, twenty-one thousand, one".