1200020213031 has 8 divisors (see below), whose sum is σ = 1607013968880. Its totient is φ = 796519966272.

The previous prime is 1200020212991. The next prime is 1200020213081. The reversal of 1200020213031 is 1303120200021.

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

It is not a de Polignac number, because 1200020213031 - 2²⁵ = 1199986658599 is a prime.

It is a super-2 number, since 2×1200020213031² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1200020213031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200020213081) 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, 873376470 + ... + 873377843.

It is an arithmetic number, because the mean of its divisors is an integer number (200876746110).

Almost surely, 2^{1200020213031} is an apocalyptic number.

1200020213031 is a deficient number, since it is larger than the sum of its proper divisors (406993755849).

1200020213031 is a wasteful number, since it uses less digits than its factorization.

1200020213031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746754545.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1200020213031 its reverse (1303120200021), we get a palindrome (2503140413052).

The spelling of 1200020213031 in words is "one trillion, two hundred billion, twenty million, two hundred thirteen thousand, thirty-one".