1020153210531 has 32 divisors (see below), whose sum is σ = 1675059929088. Its totient is φ = 537793464960.

The previous prime is 1020153210497. The next prime is 1020153210533. The reversal of 1020153210531 is 1350123510201.

It is not a de Polignac number, because 1020153210531 - 2³¹ = 1018005726883 is a prime.

It is a super-2 number, since 2×1020153210531² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1020153210533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 597891 + ... + 1548476.

It is an arithmetic number, because the mean of its divisors is an integer number (52345622784).

Almost surely, 2^{1020153210531} is an apocalyptic number.

1020153210531 is a deficient number, since it is larger than the sum of its proper divisors (654906718557).

1020153210531 is a wasteful number, since it uses less digits than its factorization.

1020153210531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148131.

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 1020153210531 its reverse (1350123510201), we get a palindrome (2370276720732).

The spelling of 1020153210531 in words is "one trillion, twenty billion, one hundred fifty-three million, two hundred ten thousand, five hundred thirty-one".