1025212431 has 32 divisors (see below), whose sum is σ = 1467648000. Its totient is φ = 634691808.

The previous prime is 1025212427. The next prime is 1025212477. The reversal of 1025212431 is 1342125201.

It is not a de Polignac number, because 1025212431 - 2² = 1025212427 is a prime.

It is a super-2 number, since 2×1025212431² = 2102121057353859522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1025212398 and 1025212407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025212481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 656830 + ... + 658388.

It is an arithmetic number, because the mean of its divisors is an integer number (45864000).

Almost surely, 2^1025212431 is an apocalyptic number.

1025212431 is a deficient number, since it is larger than the sum of its proper divisors (442435569).

1025212431 is a wasteful number, since it uses less digits than its factorization.

1025212431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1025212431 is about 32018.9386301295. The cubic root of 1025212431 is about 1008.3344870116.

Adding to 1025212431 its reverse (1342125201), we get a palindrome (2367337632).

The spelling of 1025212431 in words is "one billion, twenty-five million, two hundred twelve thousand, four hundred thirty-one".