901981102 has 16 divisors (see below), whose sum is σ = 1476859392. Its totient is φ = 409744120.

The previous prime is 901981081. The next prime is 901981103. The reversal of 901981102 is 201189109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (901981103) 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, 27843 + ... + 50785.

It is an arithmetic number, because the mean of its divisors is an integer number (92303712).

Almost surely, 2^901981102 is an apocalyptic number.

901981102 is a deficient number, since it is larger than the sum of its proper divisors (574878290).

901981102 is a wasteful number, since it uses less digits than its factorization.

901981102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24743.

The product of its (nonzero) digits is 1296, while the sum is 31.

The square root of 901981102 is about 30033.0002164286. Note that the first 3 decimals coincide. The cubic root of 901981102 is about 966.1972850549.

The spelling of 901981102 in words is "nine hundred one million, nine hundred eighty-one thousand, one hundred two".