1202015023 has 4 divisors (see below), whose sum is σ = 1311289128. Its totient is φ = 1092740920.

The previous prime is 1202015011. The next prime is 1202015033. The reversal of 1202015023 is 3205102021.

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 1202015023 - 2²¹ = 1199917871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202014988 and 1202015006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202015033) 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, 54637036 + ... + 54637057.

It is an arithmetic number, because the mean of its divisors is an integer number (327822282).

Almost surely, 2^1202015023 is an apocalyptic number.

1202015023 is a deficient number, since it is larger than the sum of its proper divisors (109274105).

1202015023 is a wasteful number, since it uses less digits than its factorization.

1202015023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109274104.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1202015023 is about 34670.0883038968. The cubic root of 1202015023 is about 1063.2530369711.

Adding to 1202015023 its reverse (3205102021), we get a palindrome (4407117044).

The spelling of 1202015023 in words is "one billion, two hundred two million, fifteen thousand, twenty-three".