1200231011231 has 8 divisors (see below), whose sum is σ = 1380107877504. Its totient is φ = 1022457968280.

The previous prime is 1200231011143. The next prime is 1200231011267. The reversal of 1200231011231 is 1321101320021.

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

It is not a de Polignac number, because 1200231011231 - 2¹⁴ = 1200230994847 is a prime.

It is a super-2 number, since 2×1200231011231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200231011831) 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, 525954605 + ... + 525956886.

It is an arithmetic number, because the mean of its divisors is an integer number (172513484688).

Almost surely, 2^{1200231011231} is an apocalyptic number.

1200231011231 is a deficient number, since it is larger than the sum of its proper divisors (179876866273).

1200231011231 is a wasteful number, since it uses less digits than its factorization.

1200231011231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051911661.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1200231011231 its reverse (1321101320021), we get a palindrome (2521332331252).

The spelling of 1200231011231 in words is "one trillion, two hundred billion, two hundred thirty-one million, eleven thousand, two hundred thirty-one".