1202120003 has 8 divisors (see below), whose sum is σ = 1375898208. Its totient is φ = 1028853504.

The previous prime is 1202119999. The next prime is 1202120021. The reversal of 1202120003 is 3000212021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1202120003 - 2² = 1202119999 is a prime.

It is a super-2 number, since 2×1202120003² = 2890185003225440018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202129003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122876 + ... + 132297.

It is an arithmetic number, because the mean of its divisors is an integer number (171987276).

Almost surely, 2^1202120003 is an apocalyptic number.

1202120003 is a deficient number, since it is larger than the sum of its proper divisors (173778205).

1202120003 is an equidigital number, since it uses as much as digits as its factorization.

1202120003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255853.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1202120003 is about 34671.6022560250. The cubic root of 1202120003 is about 1063.2839897330.

Adding to 1202120003 its reverse (3000212021), we get a palindrome (4202332024).

The spelling of 1202120003 in words is "one billion, two hundred two million, one hundred twenty thousand, three".