102020311201010 has 32 divisors (see below), whose sum is σ = 194716084326192. Its totient is φ = 38352856729600.

The previous prime is 102020311200967. The next prime is 102020311201013. The reversal of 102020311201010 is 10102113020201.

It can be written as a sum of positive squares in 8 ways, for example, as 51110102651689 + 50910208549321 = 7149133^2 + 7135139^2 .

It is not an unprimeable number, because it can be changed into a prime (102020311201013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 427926107 + ... + 428164446.

Almost surely, 2^{102020311201010} is an apocalyptic number.

102020311201010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102020311201010 is a deficient number, since it is larger than the sum of its proper divisors (92695773125182).

102020311201010 is a wasteful number, since it uses less digits than its factorization.

102020311201010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856091278.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 102020311201010 its reverse (10102113020201), we get a palindrome (112122424221211).

The spelling of 102020311201010 in words is "one hundred two trillion, twenty billion, three hundred eleven million, two hundred one thousand, ten".