1020111402 has 16 divisors (see below), whose sum is σ = 2046006720. Its totient is φ = 339073152.

The previous prime is 1020111353. The next prime is 1020111419. The reversal of 1020111402 is 2041110201.

It is a happy number.

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, 238702 + ... + 242937.

It is an arithmetic number, because the mean of its divisors is an integer number (127875420).

Almost surely, 2^1020111402 is an apocalyptic number.

1020111402 is an abundant number, since it is smaller than the sum of its proper divisors (1025895318).

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

1020111402 is a wasteful number, since it uses less digits than its factorization.

1020111402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481997.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1020111402 is about 31939.1828636864. The cubic root of 1020111402 is about 1006.6593552140.

Adding to 1020111402 its reverse (2041110201), we get a palindrome (3061221603).

The spelling of 1020111402 in words is "one billion, twenty million, one hundred eleven thousand, four hundred two".