1001020212331 has 8 divisors (see below), whose sum is σ = 1006657336080. Its totient is φ = 995383587072.

The previous prime is 1001020212323. The next prime is 1001020212397. The reversal of 1001020212331 is 1332120201001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1001020212331 - 2³ = 1001020212323 is a prime.

It is a super-2 number, since 2×1001020212331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001020212431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4354531 + ... + 4578643.

It is an arithmetic number, because the mean of its divisors is an integer number (125832167010).

Almost surely, 2^{1001020212331} is an apocalyptic number.

1001020212331 is a deficient number, since it is larger than the sum of its proper divisors (5637123749).

1001020212331 is a wasteful number, since it uses less digits than its factorization.

1001020212331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249245.

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

Adding to 1001020212331 its reverse (1332120201001), we get a palindrome (2333140413332).

The spelling of 1001020212331 in words is "one trillion, one billion, twenty million, two hundred twelve thousand, three hundred thirty-one".