1031200332231 has 4 divisors (see below), whose sum is σ = 1374933776312. Its totient is φ = 687466888152.

The previous prime is 1031200332221. The next prime is 1031200332271. The reversal of 1031200332231 is 1322330021301.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1031200332231 - 2²⁵ = 1031166777799 is a prime.

It is a super-2 number, since 2×1031200332231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031200332198 and 1031200332207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031200332221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171866722036 + ... + 171866722041.

It is an arithmetic number, because the mean of its divisors is an integer number (343733444078).

Almost surely, 2^{1031200332231} is an apocalyptic number.

1031200332231 is a deficient number, since it is larger than the sum of its proper divisors (343733444081).

1031200332231 is an equidigital number, since it uses as much as digits as its factorization.

1031200332231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343733444080.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1031200332231 its reverse (1322330021301), we get a palindrome (2353530353532).

The spelling of 1031200332231 in words is "one trillion, thirty-one billion, two hundred million, three hundred thirty-two thousand, two hundred thirty-one".