1211430002 has 4 divisors (see below), whose sum is σ = 1817145006. Its totient is φ = 605715000.

The previous prime is 1211429969. The next prime is 1211430023. The reversal of 1211430002 is 2000341121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2000341121 = 659 ⋅3035419.

It can be written as a sum of positive squares in only one way, i.e., 1135757401 + 75672601 = 33701^2 + 8699^2 .

It is a super-3 number, since 3×1211430002³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302857499 + ... + 302857502.

Almost surely, 2^1211430002 is an apocalyptic number.

1211430002 is a deficient number, since it is larger than the sum of its proper divisors (605715004).

1211430002 is an equidigital number, since it uses as much as digits as its factorization.

1211430002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605715003.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1211430002 is about 34805.6030259497. The cubic root of 1211430002 is about 1066.0218547921.

Adding to 1211430002 its reverse (2000341121), we get a palindrome (3211771123).

The spelling of 1211430002 in words is "one billion, two hundred eleven million, four hundred thirty thousand, two".