1201301311023 has 20 divisors (see below), whose sum is σ = 1957676212008. Its totient is φ = 728061400080.

The previous prime is 1201301311019. The next prime is 1201301311079. The reversal of 1201301311023 is 3201131031021.

It is not a de Polignac number, because 1201301311023 - 2² = 1201301311019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201301310987 and 1201301311005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201301311003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 674130036 + ... + 674131817.

Almost surely, 2^{1201301311023} is an apocalyptic number.

1201301311023 is a deficient number, since it is larger than the sum of its proper divisors (756374900985).

1201301311023 is a wasteful number, since it uses less digits than its factorization.

1201301311023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348261876 (or 1348261867 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1201301311023 its reverse (3201131031021), we get a palindrome (4402432342044).

The spelling of 1201301311023 in words is "one trillion, two hundred one billion, three hundred one million, three hundred eleven thousand, twenty-three".