1203011211231 has 24 divisors (see below), whose sum is σ = 1745858416640. Its totient is φ = 798240128400.

The previous prime is 1203011211221. The next prime is 1203011211289. The reversal of 1203011211231 is 1321121103021.

1203011211231 is a `hidden beast` number, since 12 + 0 + 301 + 121 + 1 + 231 = 666.

It is not a de Polignac number, because 1203011211231 - 2¹⁸ = 1203010949087 is a prime.

It is a super-2 number, since 2×1203011211231² (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 (1203011211221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2168190 + ... + 2665908.

Almost surely, 2^{1203011211231} is an apocalyptic number.

1203011211231 is a deficient number, since it is larger than the sum of its proper divisors (542847205409).

1203011211231 is a wasteful number, since it uses less digits than its factorization.

1203011211231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498987 (or 498984 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1203011211231 its reverse (1321121103021), we get a palindrome (2524132314252).

The spelling of 1203011211231 in words is "one trillion, two hundred three billion, eleven million, two hundred eleven thousand, two hundred thirty-one".