1201023677 has 4 divisors (see below), whose sum is σ = 1372598496. Its totient is φ = 1029448860.

The previous prime is 1201023673. The next prime is 1201023689. The reversal of 1201023677 is 7763201021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7763201021 = 349 ⋅22244129.

It is a cyclic number.

It is not a de Polignac number, because 1201023677 - 2² = 1201023673 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201023673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85787399 + ... + 85787412.

It is an arithmetic number, because the mean of its divisors is an integer number (343149624).

Almost surely, 2^1201023677 is an apocalyptic number.

It is an amenable number.

1201023677 is a deficient number, since it is larger than the sum of its proper divisors (171574819).

1201023677 is an equidigital number, since it uses as much as digits as its factorization.

1201023677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171574818.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 1201023677 is about 34655.7885063953. The cubic root of 1201023677 is about 1062.9606552815.

Adding to 1201023677 its reverse (7763201021), we get a palindrome (8964224698).

The spelling of 1201023677 in words is "one billion, two hundred one million, twenty-three thousand, six hundred seventy-seven".