1202011231 has 12 divisors (see below), whose sum is σ = 1343235312. Its totient is φ = 1071756864.

The previous prime is 1202011219. The next prime is 1202011247. The reversal of 1202011231 is 1321102021.

It is not a de Polignac number, because 1202011231 - 2⁵ = 1202011199 is a prime.

It is a super-2 number, since 2×1202011231² = 2889661998900270722, which 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 (1202011271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91795 + ... + 104068.

It is an arithmetic number, because the mean of its divisors is an integer number (111936276).

Almost surely, 2^1202011231 is an apocalyptic number.

1202011231 is a deficient number, since it is larger than the sum of its proper divisors (141224081).

1202011231 is a wasteful number, since it uses less digits than its factorization.

1202011231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195918 (or 195899 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1202011231 is about 34670.0336169436. The cubic root of 1202011231 is about 1063.2519188875.

Adding to 1202011231 its reverse (1321102021), we get a palindrome (2523113252).

The spelling of 1202011231 in words is "one billion, two hundred two million, eleven thousand, two hundred thirty-one".