1201203223031 has 16 divisors (see below), whose sum is σ = 1395093427200. Its totient is φ = 1012977564768.

The previous prime is 1201203223021. The next prime is 1201203223081. The reversal of 1201203223031 is 1303223021021.

It is a cyclic number.

It is not a de Polignac number, because 1201203223031 - 2³⁸ = 926325316087 is a prime.

It is a super-2 number, since 2×1201203223031² (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 = 1201203222994 and 1201203223012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201203223021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3681236 + ... + 3994233.

It is an arithmetic number, because the mean of its divisors is an integer number (87193339200).

Almost surely, 2^{1201203223031} is an apocalyptic number.

1201203223031 is a deficient number, since it is larger than the sum of its proper divisors (193890204169).

1201203223031 is an equidigital number, since it uses as much as digits as its factorization.

1201203223031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7675838.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1201203223031 its reverse (1303223021021), we get a palindrome (2504426244052).

The spelling of 1201203223031 in words is "one trillion, two hundred one billion, two hundred three million, two hundred twenty-three thousand, thirty-one".