1020012100023 has 16 divisors (see below), whose sum is σ = 1592214011136. Its totient is φ = 568647860160.

The previous prime is 1020012100021. The next prime is 1020012100031. The reversal of 1020012100023 is 3200012100201.

It is not a de Polignac number, because 1020012100023 - 2¹ = 1020012100021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020012099981 and 1020012100008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020012100021) 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, 592340661 + ... + 592342382.

It is an arithmetic number, because the mean of its divisors is an integer number (99513375696).

Almost surely, 2^{1020012100023} is an apocalyptic number.

1020012100023 is a deficient number, since it is larger than the sum of its proper divisors (572201911113).

1020012100023 is a wasteful number, since it uses less digits than its factorization.

1020012100023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184683094.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 1020012100023 its reverse (3200012100201), we get a palindrome (4220024200224).

The spelling of 1020012100023 in words is "one trillion, twenty billion, twelve million, one hundred thousand, twenty-three".