1020101742 has 32 divisors (see below), whose sum is σ = 2472975360. Its totient is φ = 309121560.

The previous prime is 1020101699. The next prime is 1020101783. The reversal of 1020101742 is 2471010201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 858078 + ... + 859265.

It is an arithmetic number, because the mean of its divisors is an integer number (77280480).

Almost surely, 2^1020101742 is an apocalyptic number.

1020101742 is an abundant number, since it is smaller than the sum of its proper divisors (1452873618).

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

1020101742 is a wasteful number, since it uses less digits than its factorization.

1020101742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717365 (or 1717359 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 1020101742 is about 31939.0316384201. The cubic root of 1020101742 is about 1006.6561776656.

Adding to 1020101742 its reverse (2471010201), we get a palindrome (3491111943).

The spelling of 1020101742 in words is "one billion, twenty million, one hundred one thousand, seven hundred forty-two".