1243511012102 has 8 divisors (see below), whose sum is σ = 1865271463176. Its totient is φ = 621753857712.

The previous prime is 1243511012099. The next prime is 1243511012141. The reversal of 1243511012102 is 2012101153421.

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

It is a super-3 number, since 3×1243511012102³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 636773 + ... + 1700735.

It is an arithmetic number, because the mean of its divisors is an integer number (233158932897).

Almost surely, 2^{1243511012102} is an apocalyptic number.

1243511012102 is a deficient number, since it is larger than the sum of its proper divisors (621760451074).

1243511012102 is a wasteful number, since it uses less digits than its factorization.

1243511012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648342.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 1243511012102 its reverse (2012101153421), we get a palindrome (3255612165523).

The spelling of 1243511012102 in words is "one trillion, two hundred forty-three billion, five hundred eleven million, twelve thousand, one hundred two".