1200990102 has 32 divisors (see below), whose sum is σ = 2588731488. Its totient is φ = 369252096.

The previous prime is 1200990101. The next prime is 1200990121. The reversal of 1200990102 is 2010990021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200990101) 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 15 ways as a sum of consecutive naturals, for example, 111298 + ... + 121610.

It is an arithmetic number, because the mean of its divisors is an integer number (80897859).

Almost surely, 2^1200990102 is an apocalyptic number.

1200990102 is an abundant number, since it is smaller than the sum of its proper divisors (1387741386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1200990102 is a wasteful number, since it uses less digits than its factorization.

1200990102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11824.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 1200990102 is about 34655.3040961986. The cubic root of 1200990102 is about 1062.9507500545.

The spelling of 1200990102 in words is "one billion, two hundred million, nine hundred ninety thousand, one hundred two".