1201023210031 has 4 divisors (see below), whose sum is σ = 1215493369272. Its totient is φ = 1186553050792.

The previous prime is 1201023210029. The next prime is 1201023210053. The reversal of 1201023210031 is 1300123201021.

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

It is a cyclic number.

It is not a de Polignac number, because 1201023210031 - 2¹ = 1201023210029 is a prime.

It is a super-2 number, since 2×1201023210031² (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 = 1201023209987 and 1201023210014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201023210731) 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, 7235079496 + ... + 7235079661.

It is an arithmetic number, because the mean of its divisors is an integer number (303873342318).

Almost surely, 2^{1201023210031} is an apocalyptic number.

1201023210031 is a deficient number, since it is larger than the sum of its proper divisors (14470159241).

1201023210031 is an equidigital number, since it uses as much as digits as its factorization.

1201023210031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14470159240.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1201023210031 its reverse (1300123201021), we get a palindrome (2501146411052).

The spelling of 1201023210031 in words is "one trillion, two hundred one billion, twenty-three million, two hundred ten thousand, thirty-one".