1121781701802 has 16 divisors (see below), whose sum is σ = 2243575680480. Its totient is φ = 373925187792.

The previous prime is 1121781701791. The next prime is 1121781701813. The reversal of 1121781701802 is 2081071871211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1121781701791) and next prime (1121781701813).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1036849 + ... + 1821707.

It is an arithmetic number, because the mean of its divisors is an integer number (140223480030).

Almost surely, 2^{1121781701802} is an apocalyptic number.

1121781701802 is an abundant number, since it is smaller than the sum of its proper divisors (1121793978678).

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

1121781701802 is a wasteful number, since it uses less digits than its factorization.

1121781701802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023077.

The product of its (nonzero) digits is 12544, while the sum is 39.

The spelling of 1121781701802 in words is "one trillion, one hundred twenty-one billion, seven hundred eighty-one million, seven hundred one thousand, eight hundred two".