1020211302131 has 24 divisors (see below), whose sum is σ = 1223881747200. Its totient is φ = 847412361600.

The previous prime is 1020211302127. The next prime is 1020211302137. The reversal of 1020211302131 is 1312031120201.

It is not a de Polignac number, because 1020211302131 - 2² = 1020211302127 is a prime.

It is a super-2 number, since 2×1020211302131² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1020211302137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1404755 + ... + 2003436.

It is an arithmetic number, because the mean of its divisors is an integer number (50995072800).

Almost surely, 2^{1020211302131} is an apocalyptic number.

1020211302131 is a deficient number, since it is larger than the sum of its proper divisors (203670445069).

1020211302131 is a wasteful number, since it uses less digits than its factorization.

1020211302131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3408395 (or 3408388 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1020211302131 its reverse (1312031120201), we get a palindrome (2332242422332).

The spelling of 1020211302131 in words is "one trillion, twenty billion, two hundred eleven million, three hundred two thousand, one hundred thirty-one".